Pop-Art Style Poster

Prompt:

A centered pop-art poster style portrait of a young character from the image looking slightly upward with a thoughtful, determined expression.
The illustration uses strong black outlines and flat, high-contrast color fills, combined with halftone dot shading for skin tones, inspired by vintage comic book printing.
Color palette is limited, bold, and iconic, dominated by bright yellow, orange, red, black, blue, and cream, with dramatic contrast and minimal blending.
The background features a radial sunburst pattern in alternating warm colors, creating a heroic, propaganda-poster–like composition.
Hair and clothing are simplified into graphic shapes with sharp edges and occasional color accents.
Overall aesthetic: retro pop art, comic book poster illustration, screen-print look, iconic, bold, graphic, non-photorealistic.