skills/prompt-nano-banana/SKILL.md

---
name: prompt-nano-banana
description: Use when writing or improving a prompt for a Pika run that uses Nano Banana (Google Gemini image) — `create_image` or `edit_image` with a nano-banana model.
---

# Nano Banana prompts

Start from `prompt-image`; this adds what Nano Banana rewards.

## In Pika

- Model ids `nano-banana` (the default), `nano-banana-edit` (needs a reference), `nano-banana-2.1` and `nano-banana-pro` in `create_image`, up to 16 reference images in `image_urls`. `edit_image` also offers `nano-banana-2`, with the photo plus up to 15 `reference_urls`.
- Put aspect ratio and resolution in their fields, not the prompt.

## Formulas

- **New image**: subject → action → place → composition → style. Write full sentences, not keyword lists.
- **With references**: the references → how they relate → the new scene. "Use the sketch for the shape and the fabric photo for the texture; render a 3D armchair in a sunlit minimalist living room."
- **Edit**: start with the verb and name only the change — "Remove the man on the left", "Make it night". Everything else is kept.
- **Combine or restyle**: a base image plus what to add from the others, or the style to carry over.

## Creative direction

- **Light**: "three-point softbox", "golden hour backlight", "high-contrast chiaroscuro".
- **Camera and lens**: "low angle, shallow depth of field (f/1.8)", "wide-angle", "macro"; a camera type sets a feel (disposable camera for snapshots, GoPro for action).
- **Color and film**: "1980s color film, slight grain", "muted teal grade".
- **Materials**: name them — "navy tweed blazer", not "suit"; "brushed steel", not "metal".

## Text

Exact words in quotes with a font description ("bold white sans-serif"). For several lines, list each line with its words and style. To get the text in another language, say which one.

## Consistency

Keep the same reference images and repeat the key identity details (face, outfit, product) in each follow-up edit. Change one thing per run.

## Avoid

- Keyword soup ("woman, red, studio, 8k, masterpiece").
- Saying what you don't want ("no cars"); say what you do ("an empty street").

## Examples

> A fashion model in a tailored brown dress and sleek boots, holding a structured handbag, stands turned slightly away against a deep cherry-red studio backdrop. Medium-full shot, centered. Fashion editorial, medium-format film, pronounced grain, rich saturation.

> Put the person from image 1 in the jacket from image 2, standing on a snowy mountain ridge at sunrise. Keep their face and hairstyle exactly. Wide shot, low angle, crisp cold light.

> A glossy beauty shot of a minimalist moisturizer jar on wet stone. Three lines of text above it: "GLOW" in flowing brush script, "10% OFF" in heavy condensed capitals, "Your first order" in a thin geometric sans.