Retro Fast Food Poster Ad

Create a vertical poster ad featuring an {argument name="character" default="uploaded character"} as the main subject. Shoot from a low angle with a wide lens. Use a {argument name="color palette" default="red, yellow, and white"} color palette. Include ketchup splash graphics, dripping melted cheese, comic burst shapes, retro American diner typography, and a bold {argument name="aesthetic" default="fast food collage"} aesthetic.