Please generate a vertical city poster in the style of 'Blending Reality and Illusion · City Impressions', with the theme [City Title]. Core concept: the entire image transitions naturally from left to right, from 'highly finished realistic watercolor → fusion of reality and illusion → high-definition real cityscape'. It is not a simple splicing of two images, but the same city in the same space gradually moving from watercolor painting to the real world. Composition: vertical 4:5, single image, no grid, no collage. Full bleed, no large blank paper background. Left third: realistic watercolor cityscape with complete buildings, roads, water, trees, bridges, urban space, and depth. The watercolor must not be just faint pigment or blank background, but a city meticulously painted in watercolor. Middle zone: natural transition where buildings, sky, water, trees, bridges, and roads all participate in material blending. Transition must be continuous, soft, layered, not a hard cut or splicing. Right third: high-definition real cityscape with natural light, rich detail, strong realism. Overall feel: the city is slowly waking up from the painting, moving from imagination to reality. Visual style: left watercolor should be realistic, detailed, structurally clear, while retaining paper texture, brush strokes, pigment blending, and hand-painted feel. Right real part should be clear, transparent, modern, with a real photographic feel. Overall tone: bright, clean, sophisticated, restrained, with artistic sense and urban modernity. Colors: sky blue, urban gray, vegetation green, water blue, with soft warm light and shadow to enhance layers. No childish cartoon feel, no traditional tourist brochure style, no excessive vintage yellowing. Text: minimal, overlaid directly on the image, no complex layout. Keep only main title: [City Title]. Subtitle: 'From Watercolor to Reality'. Font: simple, elegant, restrained, not overpowering the image. No large explanatory text, no information clutter. City content: accurately present the most recognizable urban landscape of [City Title], including [core landmarks], [river/harbor/mountain/road/bridge features]. Overall city recognition should be strong, even without the title, the city should be roughly identifiable. Avoid: large blank areas, watercolor without city content, hard middle cut, left-right collage feel, grossly incorrect landmarks, garbled text, excessive decoration, low resolution, messy image.
