", "clothing": "", "expression": "", "pose": "", "details": "" }, "scene": { "setting": "", "key_elements": "", "background": "", "foreground": "", "time_of_day": "" }, "photography": { "camera": "", "lens": "<24mm f/1.4 | 35mm f/1.4 | 50mm f/1.2 | 85mm f/1.8 | 135mm f/2>", "shot_type": "", "depth_of_field": "", "lighting": "", "film_stock": "", "texture": "" }, "mood": "", "color_palette": "", "aspect_ratio": "<1:1 | 16:9 | 4:3 | 9:16 | 3:2>", "quality": "8K, photorealistic, cinematic, RAW photo", "negative": "no text, no watermark, no deformed faces, no extra limbs, no blurry" } ``` **Camera selection guide:** - Portraits → Hasselblad X2D or Canon R5 + 85mm - Street/documentary → Leica M11 + 35mm - Landscapes/cinematic → Sony A7IV + 24mm or ARRI Alexa 65 - Night/low light → Sony A7IV + 50mm f/1.2 + CineStill 800T - Fashion → Hasselblad X2D + 80mm ### 📸 Product / Studio ```json { "instruction": "", "subject": { "product": "", "material": "", "color": "", "details": "" }, "scene": { "backdrop": "", "surface": "", "props": "" }, "photography": { "camera": "Hasselblad X2D", "lens": "90mm f/3.2 macro", "shot_type": "", "lighting": "", "reflections": "", "depth_of_field": "shallow, product sharp, background soft" }, "mood": "", "color_palette": "", "aspect_ratio": "1:1", "quality": "8K, commercial photography, sharp detail, color-accurate", "negative": "no text, no watermark, no dust, no scratches" } ``` ### 🖌️ Illustration / Digital Art ```json { "instruction": "", "subject": { "character": "", "expression": "", "pose": "", "details": "" }, "scene": { "setting": "", "key_elements": "", "atmosphere": "" }, "art_style": { "medium": "", "technique": "", "reference_artists": "<1-2 artist names for style reference>", "color_approach": "" }, "composition": { "framing": "", "perspective": "", "focal_point": "" }, "mood": "", "color_palette": "", "aspect_ratio": "<16:9 | 3:2 | 1:1>", "quality": "highly detailed illustration, trending on ArtStation, masterpiece", "negative": "no text, no watermark, no photo-realistic, no AI artifacts" } ``` ### 🌸 Anime / Manga ```json { "instruction": "", "subject": { "character": "", "hair": "", "eyes": "", "outfit": "", "pose": "" }, "scene": { "setting": "", "atmosphere": "", "background_style": "" }, "art_style": { "studio_reference": "", "line_weight": "", "shading": "", "era": "" }, "composition": { "framing": "", "effects": "" }, "mood": "", "color_palette": "", "aspect_ratio": "16:9", "quality": "anime key visual, high detail, studio quality, clean lines", "negative": "no western cartoon style, no 3D, no photorealistic, no deformed hands" } ``` ### 🧸 3D / Pixar / CGI ```json { "instruction": "<3D scene description>", "subject": { "character": "", "material": "", "proportions": "", "expression": "", "pose": "" }, "scene": { "environment": "", "props": "", "scale": "" }, "render": { "engine": "", "style": "", "materials": "", "lighting": "", "effects": "" }, "mood": "", "color_palette": "", "aspect_ratio": "16:9", "quality": "3D render, Pixar quality, high detail, raytraced, 8K", "negative": "no 2D, no flat, no sketch, no watermark, no text" } ``` ### 🎨 Watercolor / Traditional Art ```json { "instruction": "", "subject": { "description": "", "details": "" }, "scene": { "setting": "", "elements": "" }, "traditional_art": { "medium": "", "paper": "", "technique": "", "brush": "", "finish": "" }, "composition": { "framing": "", "white_space": "" }, "mood": "", "color_palette": "", "aspect_ratio": "3:2", "quality": "fine art quality, museum worthy, masterful brushwork, visible texture", "negative": "no digital look, no photorealistic, no text, no watermark, no AI artifacts" } ``` ### ✏️ Minimalist / Graphic Design ```json { "instruction": "", "subject": { "element": "

", "style": "" }, "design": { "approach": "", "grid": "", "shapes": "", "contrast": "" }, "color_palette": "<2-3 specific colors or palette name>", "background": "", "aspect_ratio": "1:1", "quality": "clean vector quality, crisp edges, professional graphic design", "negative": "no photorealistic, no complex textures, no gradients unless specified, no text unless requested" } ``` ### 🌀 Surreal / Abstract ```json { "instruction": "", "subject": { "central_element": "

", "transformation": "", "symbolism": "" }, "scene": { "reality_level": "", "environment": "", "scale_distortion": "" }, "art_style": { "reference": "", "medium": "", "technique": "" }, "mood": "", "color_palette": "", "aspect_ratio": "16:9", "quality": "highly detailed, surrealist masterpiece, museum quality", "negative": "no text, no watermark, no generic, no stock photo feel" } ``` --- ## Prompting Rules (ALL styles) ### Always Do: 1. **Be specific** — "mint-green gecko" not "a gecko", "warm golden hour" not "nice light" 2. **Include negative prompt** — always specify what to avoid 3. **Pick an aspect ratio** — match the content (landscape 16:9, portrait 9:16, square 1:1) 4. **Add sensory details** — textures, temperatures, sounds implied visually 5. **One focal point** — every image needs a clear subject 6. **Match quality keywords to style** — "8K photorealistic" for photos, "trending on ArtStation" for illustrations 7. **Color palette matters** — specify colors or a grading reference, don't leave it to chance ### Never Do: 1. ❌ Don't include text/words in the image (Gemini renders text poorly) 2. ❌ Don't over-specify (pick 1 camera, 1 lens, not 3 options) 3. ❌ Don't mix conflicting styles ("photorealistic anime" — pick one) 4. ❌ Don't use generic prompts ("a beautiful sunset" — add specifics) 5. ❌ Don't forget the negative prompt 6. ❌ Don't request NSFW content ### Resolution Guide: - **1K** — Quick drafts, thumbnails, iteration - **2K** — Social media, general use (best quality/cost ratio) - **4K** — Print, hero images, final deliverables --- ## Examples ### User says: "make me a gecko eating pizza on a skateboard" **Detected style:** 3D / Pixar (fun character scene) ```json { "instruction": "A cute mint-green gecko character riding a skateboard while eating a large slice of pepperoni pizza", "subject": { "character": "small mint-green gecko with big expressive pale pink eyes and a wide happy grin", "material": "smooth glossy skin with subtle subsurface scattering", "proportions": "stylized chibi, slightly oversized head", "expression": "pure joy, eyes half-closed savoring the pizza", "pose": "standing on a moving skateboard, one hand holding pizza slice, cheese stretching" }, "scene": { "environment": "sunny Venice Beach boardwalk, palm trees, blue sky", "props": "worn wooden skateboard with flame decals, pizza box on a nearby bench", "scale": "life-size character in real-world setting" }, "render": { "engine": "Pixar RenderMan", "style": "Pixar", "materials": "subsurface scattering on gecko skin, glossy cheese, matte concrete", "lighting": "warm golden hour sunlight with soft shadows", "effects": "subtle motion blur on skateboard wheels, depth of field" }, "mood": "carefree summer vibes, playful and fun", "color_palette": "warm yellows, mint green, sky blue, pizza orange", "aspect_ratio": "16:9", "quality": "3D render, Pixar quality, high detail, raytraced, 8K", "negative": "no 2D, no flat, no text, no watermark, no dark mood" } ``` ### User says: "a samurai in the rain, dramatic" **Detected style:** Cinematic / Photorealistic ```json { "instruction": "A lone samurai standing in heavy rain at night, katana drawn, cinematic and dramatic", "subject": { "description": "weathered samurai warrior, middle-aged, battle-scarred", "clothing": "dark indigo hakama and kimono, worn leather chest armor, straw sandals", "expression": "intense focus, eyes locked forward, jaw set", "pose": "standing in chudan-no-kamae stance, katana held at center", "details": "rain droplets on blade edge catching light, wet hair tied in topknot" }, "scene": { "setting": "abandoned temple courtyard with stone lanterns", "key_elements": "heavy rainfall, puddles reflecting lantern light", "background": "dark silhouette of temple roof, mist rolling between pillars", "foreground": "rain splashing on stone ground, shallow puddles", "time_of_day": "deep night, moonless" }, "photography": { "camera": "ARRI Alexa 65", "lens": "50mm f/1.2", "shot_type": "medium shot, slightly low angle", "depth_of_field": "shallow, rain drops in foreground out of focus", "lighting": "single warm lantern as key light from left, cool rain backlit by distant light, rim light on shoulders", "film_stock": "CineStill 800T", "texture": "subtle film grain" }, "mood": "tense calm before the storm, honor and solitude", "color_palette": "deep indigo, warm amber lantern glow, cool steel grey", "aspect_ratio": "16:9", "quality": "8K, photorealistic, cinematic, RAW photo", "negative": "no text, no watermark, no deformed faces, no blurry, no anime style" } ``` ### User says: "paint me some sunflowers, like watercolor" **Detected style:** Watercolor / Traditional ```json { "instruction": "A loose, expressive watercolor painting of sunflowers in a ceramic vase", "subject": { "description": "five sunflowers in various stages of bloom, some drooping slightly", "details": "petals ranging from bright yellow to burnt sienna, dark brown seed heads with visible texture" }, "scene": { "setting": "simple tabletop, implied window light", "elements": "rustic blue ceramic vase, a few fallen petals on the surface, soft shadow" }, "traditional_art": { "medium": "watercolor", "paper": "cold press watercolor paper, visible tooth texture", "technique": "wet-on-wet for soft petal edges, dry brush for seed head texture, controlled wash for background", "brush": "large round for washes, small round for details", "finish": "loose and expressive, some areas left unfinished showing white paper" }, "composition": { "framing": "slightly off-center, flowers extending above frame edge", "white_space": "generous margins, breathing room around the vase" }, "mood": "warm, nostalgic, peaceful afternoon light", "color_palette": "cadmium yellow, burnt sienna, cerulean blue, sap green — limited palette", "aspect_ratio": "3:2", "quality": "fine art quality, museum worthy, masterful brushwork, visible paper texture", "negative": "no digital look, no photorealistic, no text, no watermark, no harsh edges" } ``` --- ## Editing / Reference Images When the user provides a reference image to edit or use as inspiration: 1. **Include the image** with `-i` flag 2. **Describe what to change** in the instruction field 3. **Keep the JSON structure** — same style detection and template applies 4. **Be explicit** about what to preserve vs change ```bash uv run {nano-banana-pro-dir}/scripts/generate_image.py \ --prompt '' \ --filename "edited-output.png" \ -i "/path/to/original.png" \ --resolution 2K ``` For character consistency across multiple images, always include the same reference image(s) and describe the character identically in the subject field. --- ## Quick Reference: Style → Key Fields | Style | Must-Have Fields | Key Differentiator | |-------|-----------------|-------------------| | Cinematic | photography.camera, lens, film_stock | Real camera specs sell the realism | | Product | photography.lighting, surface, reflections | Clean, commercial precision | | Illustration | art_style.medium, technique, reference_artists | Artist references anchor the style | | Anime | art_style.studio_reference, line_weight, shading | Studio name = instant style match | | 3D/Pixar | render.engine, style, materials | Render engine + material physics | | Watercolor | traditional_art.medium, paper, technique | Paper texture + brush technique | | Minimalist | design.approach, shapes, contrast | Less is more, precision matters | | Surreal | art_style.reference, reality_level, transformation | Named surrealist = instant vibe |