Prompt · Product & Brand · Nano Banana

{
"reference_images": {
"product_image": "UPLOADED_IMAGE",
"usage_rule": "Use the uploaded image as the exact visual reference for the product’s form, proportions, materials, and overall identity. Do not redesign or reinterpret the product.n},
"layout": {
"canvas": {
"orientation": "vertical",
"aspect_ratio": "3:4",
"background": "warm neutral paper-like surfacen},
"structure": {
"top_section": "lifestyle_hero",
"bottom_section": "technical_specificationn}n},
"top_section": {
"type": "lifestyle_product_image",
"composition": {
"placement": "top_center",
"scale": "dominant",
"margin": "generous whitespace around productn},
"environment": {
"setting": "minimal architectural interior",
"lighting": {
"type": "natural sunlight",
"direction": "angled side light",
"quality": "soft but high-contrast shadowsn},
"floor": "subtle concrete or stone surface",
"background": "textured plaster walln},
"rendering": {
"style": "editorial lifestyle photography",
"detail": "high realism",
"color_grading": "warm, muted, premiumn}n},
"bottom_section": {
"type": "technical_specification_panel",
"layout": {
"grid": "modular",
"alignment": "clean, architecturaln},
"technical_drawings": {
"placement": "bottom_left_and_center",
"style": "architectural line drawings",
"views": [n"front view",
"side view",
"three-quarter cutaway or profile view"n            ],
"projection": "orthographic",
"line_style": {
"color": "muted red or sepia",
"weight": "fine technical linesn},
"annotations": {
"type": "measurement and construction callouts",
"language": "neutral technical labels",
"density": "minimal, editorialn}n},
"materials_panel": {
"placement": "bottom_right",
"content": {
"type": "material_swatches",
"count": "3-4 depending on product",
"format": "square or rectangular samplesn},
"textures": {
"source": "derived from the product materials",
"examples": [n"fabric",
"leather",
"metal",
"wood",
"plastic"n                ]n            },
"labels": {
"style": "small editorial captions",
"tone": "technical but refinedn}n}n},
"typography": {
"style": "minimal editorial",
"usage": "subtle captions, no large headlines",
"color": "soft black or dark brownn},
"overall_style": {
"mood": "design catalog / product design journal",
"aesthetic": "architectural, premium, calm",
"avoid": [n"clutter",
"bold colors",
"heavy branding",
"overly decorative graphics"n        ]n    },
"constraints": {
"do_not": [n"change product design",
"invent new materials",
"add logos unless present in reference",
"use perspective distortion in drawings"n        ]n    }n}"}]