Nano Banana 2 poster prompts: three layouts you can actually use

Build the brief before you write the prompt

A poster has to work at a glance. Pick one main image and one main message. Decide where the title goes, then leave space for the details. If every corner carries a headline, a date and decorative text, the result becomes hard to read.

Google's image generation guide shows Nano Banana 2 making image layouts with text. That makes it useful for trying a poster concept. It does not remove the need to review spelling or finish the layout by hand.

• Format: tell the model whether you want a vertical print poster or a square social graphic.
• Subject: name one visual focal point, such as a singer, a market stall or a mountain.
• Hierarchy: say where the title and event details belong.
• Copy: provide the exact words and keep them short.

Three copy-and-edit poster prompts

These are original prompt templates, not claims about tested output. Replace the fictional names, dates and locations before you generate.

Create a vertical concert poster for a fictional indie band. One singer stands beneath a single warm spotlight on a dark stage. Deep navy background, soft amber light, subtle paper texture. Leave a calm open area at the top for the title and a clean strip at the bottom for details. Place only this exact text: "NIGHT TIDE" at the top, then "FRIDAY 18 SEPTEMBER" and "THE GLASS ROOM" in the bottom strip. Strong contrast, clear reading order, no extra words, no logos.

Design a vertical poster for a fictional weekend makers market. Show one close-up table with handmade ceramics, cut flowers and fresh bread in morning light. Warm cream, terracotta and olive colours. Put the main title on a plain cream block at the top, away from the objects. Put the event details on a simple block at the bottom. Use only these exact words: "MAKERS MARKET", "SATURDAY 10 OCTOBER", "RIVER HALL". Natural texture, generous margins, no other writing or brand marks.

Create a vertical editorial travel poster illustration of a quiet coastal town at sunrise. A winding path leads from the foreground to white buildings beside the sea. Limited palette of chalk white, faded blue and coral. Bold simple shapes, gentle print grain, no photorealism. Leave a large empty sky area above the buildings for a title I will add later. Leave a quiet margin at the bottom for a date or website. No text, no symbols that look like letters, no logos.

Refine one thing at a time

If the first result is close, change a single part of the brief. Ask for more empty space, a quieter background or a larger title area. Keep the subject and palette fixed while you adjust the layout. For another real poster-layout decision, see our festival poster breakdown.

Need a different visual direction? Compare the Nano Banana 2 model page with other models on DaFreeAi. Use the same brief when you compare them, and judge the actual images you get.

Check the text before the poster goes out

Google describes improved text rendering for Nano Banana 2. That is a capability, not a promise that every poster will be correct. Check the final file at full size and at phone size.

• Title spelled exactly right?
• Date, time and venue correct?
• Readable against the background?
• No extra words or stray marks?

For tickets, prices, QR codes and legal copy, add approved text yourself after generating the image. That keeps important information editable.

Sources and scope

Google's Nano Banana 2 announcement describes text rendering and image editing. Its image generation guide includes a Nano Banana 2 magazine-cover prompt and broader prompting advice. The three prompts on this page were written for DaFreeAi; we have not presented them as measured tests or model outputs.