AI Prompt for Anime Style Graphic Design Poster with Minimalism

"Constructivist graphic design poster, pure color block style, vector graphic style, no substitutions, no shadows, no lighting effects. The theme is {argument name="theme" default="Violet Evergarden"}, with colors matching the character design. The character’s body proportions should align with the art style. Clothing is represented using large areas of solid color. Half-body or mostly half-body composition, with the character centered. Geometric shapes (squares, circles, diagonal lines) surround the character to construct the visual layout. The shapes participate in the composition but must not cover the face. All color details must be solid color blocks. Edges should be sharp, clean, and textureless. Overall style: modern graphic design poster, not illustration. {argument name="aspect ratio" default="9:16 vertical"} format."