Prompt:

Vintage poster design, retro typography, bold primary colors, geometric shapes, mid-century modern style, flat illustration, abstract, clean lines, old-school comic book aesthetic --v 6.1 --ar 2:3

復古海報設計，復古排版，鮮豔的原色，幾何形狀，中世紀現代風格，平面插圖，抽象，乾淨的線條，老派漫畫書美學