Gemini Nano Banana Pro Prompt image_description...
Reference image from @NoahNekuView Original

Copy this Nano Banana Pro text-to-image prompt to create portrait...

Text-to-Image

Prompt

Gemini Nano Banana Pro Prompt: { "image_description": { "subject": { "gender": "female", "hair": { "color": "dark black", "style": "long, layered, voluminous waves", "texture": "glossy" }, "face": { "expression": "sultry, neutral", "makeup": "Natural ", "eye_color": "light hazel or green" }, "skin_tone": " Fair Skin }, "clothing": { "type": "dress", "pattern": "leopard print", "style": "backless, halter neck, bodycon/fitted", "fabric_texture": "smooth" }, "accessories": { "jewelry": [ "gold hoop earrings", "thin chain necklace with a cross pendant hanging down the back", "stack of gold and silver bangles/bracelets on wrist" ], "objects": "smartphone (iPhone style) held in right hand" }, "pose": { "stance": "standing, angled profile showing back and side", "head_position": "turned over left shoulder facing the mirror", "action": "taking a mirror selfie" }, "environment": { "location": "bedroom", "background_elements": [ { "object": "bed", "details": "white linens, chunky beige knit throw blanket at the foot" }, { "object": "furniture", "details": "wooden dresser with rattan/cane drawers, wooden bedside table" }, { "object": "lighting_fixture", "details": "bedside lamp with warm yellow light" } ], "walls": "plain, neutral beige/cream color" }, "lighting": { "source": "camera flash reflected in mirror", "effect": "bright starburst flare from flash, warm ambient glow from bedside lamp", "atmosphere": "dim, cozy, evening setting" }, "technical_details": { "type": "mirror selfie", "perspective": "reflection", "focus": "sharp on subject, slightly softer background" } } }

Aspect Ratio
3:4
Model
Nano Banana Pro

How This Prompt Works

Copy this Nano Banana Pro text-to-image prompt to create portrait concepts in indoor scenes with moody contrast. Best in 3:4 framing. Ready for...

Keep the base prompt intact for the first run, then iterate on one variable at a time so the composition stays stable. Keep the generator on 3:4 for the closest match. The mood is anchored by { "image_description": { "subject": { "gender": "female", "hair": { "color": "dark black", "style":...

Best Settings

Recommended Aspect Ratio
3:4
Recommended Style
Moody
Negative Prompt
ugly, deformed, low quality, blurry, text, watermark, worst quality, low res
Recommended Model
Nano Banana Pro

What to Change First

  • Change the subject block first: { "image_description": { "subject": { "gender": "female", "hair": { "color": "dark black", "style": "long, layered...
  • Adjust the mood through light and backdrop cues: { "image_description": { "subject": { "gender": "female", "hair": { "color": "dark black", "style": "long, layered...
  • Keep the finish constraints aligned while you test variants: { "image_description": { "subject": { "gender": "female", "hair": { "color": "dark black", "style": "long, layered...

Before You Generate

Note 1

Use 3:4 on the first run, then test alternate crops after the base composition is working.

Note 2

Lock the environment before fine styling changes: { "image_description": { "subject": { "gender": "female", "hair": { "color": "dark black", "style":...

Best For

  • Portrait studies, beauty concepts, and tightly framed editorial references.
  • Text-to-image ideation when you want a reliable starting frame in 3:4.
  • Structured prompt workflows where the first pass should already have a usable composition.

Skip This Prompt If

  • You need a wide environment shot or multiple subjects competing for attention in the same frame.
  • You need to begin with a radically different crop than 3:4 instead of honoring the existing composition hints.
  • You want a loose multi-subject scene instead of a prompt built around one controlled focal point.

Mistakes to Avoid

  • Ignoring the recommended 3:4 crop on the first run. The prompt's composition cues were written for that frame.
  • Changing subject, lighting, and finish together. You lose the stable base that makes the prompt reusable.
  • Dropping the lighting or backdrop cues too early. Those clauses usually carry most of the mood and depth.

3 Ways to Adapt This Prompt

Use these as safe starting edits so you keep the prompt's structure while still making it your own.

Swap the subject, keep the frame

Replace { "image_description": { "subject": { "gender": "female", "hair": { "color": "dark... with your own subject while leaving the camera and composition cues intact.

Retune the mood, not the structure

Keep the subject block, then rewrite { "image_description": { "subject": { "gender": "female", "hair": { "color": "dark... to move the image into a new lighting setup.

Change the finish without breaking geometry

Test a new texture or rendering finish by rewriting { "image_description": { "subject": { "gender": "female", "hair": { "color": "dark... while leaving the scene structure alone.

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