/nano-banana-prompts

name: nano-banana-prompts
description: Generate optimized prompts for Gemini 2.5 Flash Image (Nano Banana). Use for image generation, crafting photo prompts, art styles, or multi-turn editing workflows with best practices.
license: MIT

Nano Banana Image Prompt Generator

Generate high-quality prompts for Gemini 2.5 Flash Image using proven best practices from October 2025.

Core Principle

**Describe scenes naturally, don't list keywords.**

❌ `woman, business suit, office, professional` ✅ `A professional businesswoman in navy suit stands confidently in modern glass-walled office overlooking city skyline. Warm afternoon light streams through windows.`

Prompt Structure

Basic Template

A [SHOT TYPE] of [SUBJECT] [ACTION] in [ENVIRONMENT]. 
[LIGHTING] creates [MOOD]. [CAMERA/STYLE DETAILS]. [ASPECT RATIO].

Components

1. **Subject & Action** - Who/what and what they're doing 2. **Setting** - Where the scene takes place 3. **Lighting** - Natural/artificial light sources and quality 4. **Mood** - Emotional tone or atmosphere 5. **Technical Details** - Camera, lens, style specifics 6. **Format** - Aspect ratio or dimensions

Prompt Length

• **Short (10-20 words)**: Quick generation, minimal control
• **Medium (50-100 words)**: ⭐ RECOMMENDED - balanced control
• **Long (100-200 words)**: Maximum control for complex scenes

Photography Prompts

Template

Photorealistic [SHOT TYPE] of [SUBJECT], [ACTION], in [ENVIRONMENT]. 
Illuminated by [LIGHTING], creating [MOOD]. Captured with [CAMERA/LENS], 
emphasizing [DETAILS]. [ASPECT RATIO] format.

Camera Control

**Lenses:**

• 35mm, 50mm (standard)
• 85mm portrait (close-ups)
• 10-24mm wide (landscapes)
• 60-105mm macro (details)

**Lighting:**

• Golden hour (warm, soft)
• Blue hour (cool, atmospheric)
• Three-point (studio)
• Dramatic side (high contrast)
• Rembrandt (classic portrait)

**Settings:**

• Shallow DOF: f/1.4-2.8 (blurred background)
• Deep focus: f/11-22 (everything sharp)
• Motion blur for action

Example

Professional corporate headshot of mid-30s woman with shoulder-length brown hair 
in charcoal blazer. She's smiling warmly at camera against soft gray backdrop. 
Shot with 85mm f/2.0, studio three-point lighting creates gentle shadows defining 
facial features. Ultra-high resolution, LinkedIn-ready quality. 1:1 format.

Art & Illustration Prompts

Template

[STYLE] illustration of [SUBJECT] [ACTION/POSE]. [COMPOSITION] with 
[COLOR PALETTE]. [TECHNIQUE/MEDIUM]. Inspired by [REFERENCE], 
emphasizing [QUALITIES].

Common Styles

• Watercolor painting
• Digital art
• Oil painting
• Pencil sketch
• Ink drawing
• Anime/manga
• Pixel art
• Minimalist vector

Example

Watercolor illustration of young girl reading book under oak tree. Seated 
cross-legged in sun-dappled clearing with wildflowers. Soft, loose brushstrokes 
with pastel color palette of greens, yellows, pinks. Transparent washes create 
dreamy, ethereal quality. Inspired by children's book illustration, emphasizing 
wonder and tranquility. 4:5 portrait format.

Text Rendering

**Best Practices:**

• Keep under 25 characters total
• Maximum 2-3 phrases
• Specify font style (bold, script, sans-serif)
• Put exact text in quotes
• Describe position explicitly

**Example:**

Movie poster with bold red text "SUMMER" at top and "Adventure Awaits" 
in white script font at bottom. Ocean sunset background. Cinematic style.

Multi-Turn Editing Workflow

Nano Banana excels at conversational editing. Make one change at a time.

**Example sequence:** 1. "Create professional headshot of woman in business attire" 2. "Change background to modern office" 3. "Make her wearing glasses" 4. "Add warmer lighting"

Product Photography

Template

High-resolution product photo of [PRODUCT] on [SURFACE]. [LIGHTING] 
to [PURPOSE]. Camera angle: [TYPE] to showcase [FEATURE]. Ultra-realistic, 
sharp focus on [DETAIL]. [ASPECT RATIO].

Example

High-resolution product photo of stainless steel smartwatch on white marble 
surface. Soft diffused studio lighting from 45-degree angle to minimize 
reflections and show screen clearly. Camera angle: slight overhead to showcase 
circular face and metal band texture. Ultra-realistic, sharp focus on watch 
face display. 1:1 format for e-commerce.

Landscape Photography

Template

[TYPE] landscape of [LOCATION] at [TIME]. [WEATHER/ATMOSPHERE]. 
[FOREGROUND ELEMENTS]. Shot with [LENS] from [VANTAGE POINT]. 
[COMPOSITION]. Professional landscape photography with [GRADING]. [MOOD].

Example

Dramatic landscape of mountain lake at golden hour. Wispy clouds catch 
warm orange light over snow-capped peaks. Weathered dock extends into 
mirror-still water as foreground. Shot with 16mm wide-angle from low 
lakeside vantage. Rule-of-thirds composition places horizon in upper third. 
Professional landscape photography with warm color grading. Serene yet majestic.

Abstract Art

Template

[MOVEMENT] abstract exploring [CONCEPT]. [COMPOSITION] with [COLORS/TEXTURES]. 
[MEDIUM] emphasizing [GOALS]. [CONTEXT].

Example

Bold geometric abstract exploring tension and harmony. Overlapping angular 
shapes with vibrant primary colors against deep black. Digital art emphasizing 
sharp edges and color interaction. Large-scale wall art format, 16:9.

Common Pitfalls

**Avoid:**

• Keyword lists without context
• Vague descriptions
• Conflicting style instructions
• Overly complex text rendering
• Too many simultaneous changes in edits

**Instead:**

• Use complete sentences
• Be specific about details
• Maintain style consistency
• Keep text simple
• Edit iteratively

Style References

When requesting specific artistic styles, reference:

• Art movements (impressionism, art deco)
• Artists (in style of Van Gogh's brushwork)
• Media (watercolor, oil painting, digital art)
• Eras (1950s photography, modern minim