Seoul: River Light, City Soul

Create a refined wide landscape travel-poster illustration of Seoul. CORE CONCEPT: Depict the city as a calm, elegant, highly stylized pastel paper-collage artwork that combines the city's most iconic landmark and its most recognizable transportation vehicle within a single harmonious composition. The illustration should feel like a premium museum-quality travel poster, sophisticated editorial artwork, collectible souvenir print, and handcrafted paper diorama. STYLE: Minimal pastel paper-collage illustration Layered paper-cut artwork Flat geometric color shapes Clean silhouettes Subtle 3D paper relief Soft tactile paper texture Gentle cut-paper shadows Visible paper grain Matte gouache poster finish No photorealism No realistic rendering No CGI No glossy materials No excessive detail COMPOSITION: Wide horizontal format. Large open sky occupying approximately 40--50% of the image. Clear foreground, midground, and background separation. Balanced negative space. Relaxed, airy composition. Never overcrowded. FOREGROUND: Place N26 bus as the main foreground subject. The vehicle should occupy approximately 25--35% of the composition. The vehicle must be simplified into elegant paper-cut forms while remaining instantly recognizable. Surround with a small selection of: • flower planters • benches • tiny pedestrians • cyclists • street lamps • local urban details MIDGROUND: Create a simplified city scene using: Local architecture Local streetscape Local parks or waterfront Local cultural details Keep forms simplified and graphic. BACKGROUND: Feature layered paper-cut silhouettes of: Namsan Tower Secondary landmarks The skyline should gradually fade into soft atmospheric layers. Use only simplified landmark forms that remain instantly recognizable. SKY: Large calm pastel sky. 2--5 simple paper clouds. Small paper birds. Generous breathing room. Never busy. COLOR PALETTE: Soft sky blue Warm cream Light beige Pale stone gray Muted sage green Powder mint Dusty coral Soft peach Off-white Plus one city-specific accent color LIGHTING: Bright soft morning daylight. Gentle ambient illumination. Soft shadows. Clean atmosphere. Warm optimistic mood. TYPOGRAPHY: Upper-left corner: SEOUL Below: 서울 · SEOUL Small subtitle: RIVER LIGHT, CITY SOUL Use white geometric sans-serif typography with wide letter spacing. Minimal and elegant. MOOD: Dreamy Collectible Cultured Optimistic Quietly sophisticated Travel-inspired Modern Whimsical Refined AVOID: Photorealism Over-detailed architecture Heavy outlines Crowded scenes Readable advertisements Brand logos Watermarks Neon colors Cyberpunk aesthetics Dark lighting Messy compositions FINAL RESULT: A refined pastel paper-collage city poster featuring N26 bus and Namsan Tower as the two primary visual anchors, using tactile paper textures, clean geometric layering, generous negative space, and a sophisticated modern travel-illustration aesthetic.