Prompt code:
A vibrant and colorful graffiti-inspired artwork with a collection of 30 different posters. The posters have floral designs, geometric patterns, and images. They are mostly in a retro or vintage style and feature a variety of different colors and patterns. The posters are arranged in a grid format, and the overall effect is one of visual interest and variety. The background is a grungy gray with splatters of paint and graffiti, adding to the urban and edgy feel of the artwork.
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