城市旅游矢量插画海报设计

Destination = [City Name] Create an ultra-high-resolution vector travel illustration poster themed around [DESTINATION]. CORE COMPOSITION: Portrait poster aspect ratio (4:5) Represent the entire city as one compressed "illustrated world" Layer landmarks, architecture, bridges, rivers, streets, parks, transportation, hills, and sky elements vertically throughout the composition Every element should feel densely interconnected like a postcard-style city collage Balance 8–15 iconic landmarks of the city across the full composition Leave a large clean margin at the bottom containing: "[DESTINATION]" typography Typography should use a thin geometric sans-serif with wide letter spacing Overall composition should resemble a premium tourism-board mural or high-end city guide poster STYLE: mid-century modern vector illustration, Scandinavian editorial poster style, minimal geometric city illustration, clean flat vector art, thick navy outlines, ultra crisp linework, architectural illustration, storybook cityscape, retro tourism poster aesthetic, European travel postcard mood, highly organized composition, clean infographic-like layering, Adobe Illustrator vector feel, screen print-style illustration, premium lifestyle poster design VISUAL RULES: All buildings simplified into geometric architectural forms Avoid excessive micro-detail Maintain bold outer outlines Use a harmonious mix of straight and curved lines Landmarks should appear slightly cute and stylized rather than realistic Compress the cityscape into a "miniature toy city" feeling Composition should feel densely packed with minimal empty space Between buildings, insert small icon-like elements such as: trees, clouds, hills, rivers, roads, hot air balloons, birds, cars, trams, trains Entire composition should feel extremely organized Emphasize symmetry and visual rhythm Poster-ready composition COLOR PALETTE: muted pastel palette cream, dusty blue, sage green, warm orange, soft peach, muted teal Low-saturation soft colors Background should be bright ivory or very light gray Minimal shadows Flat shading only LIGHTING: soft daylight even lighting no dramatic shadows clean editorial brightness QUALITY: ultra detailed vector, print-ready, 8k, extremely clean edges, no blur, no painterly texture, no photorealism, pure vector illustration, high-end travel poster quality