Harbin Central Street Watercolor Urban Sketch Poster AI Image Prompt

Generate 1 premium watercolor urban sketch poster in 3:4 portrait format. City: Harbin Central Street. Automatically determine and generate the most suitable elements for the city: representative outdoor location, iconic scenery, street/square/riverside/path space, urban atmosphere, color mood, English city name, and one refined short English phrase. Overall style: premium watercolor urban sketch, travel journal watercolor illustration, architectural sketch poster, negative-space transparent watercolor. The image should have delicate and free blue-black pen lines, restrained transparent watercolor washes, large warm-white cold-pressed paper white space, natural urban perspective, and a light, relaxed travel feeling. Fixed 3:4 portrait format. Eye-level with pedestrians; place the city's representative scenery in the midground. Streets, walkways, squares, riverbanks, or stone-paved roads naturally extend into the distance, forming a soft vanishing point. Keep the foreground open, bright, and light; do not place oversized cropped people, trees, vehicles, or close-up objects. Watercolor texture requirements: transparent, restrained, light; showing cold-pressed paper texture, warm-white paper base, transparent watercolor layering, slight bleeding, water-mark edges, dried watercolor edges, and local white space. Overall color: low saturation, premium, transparent; can use warm ochre, light terracotta, blue-gray, lavender gray, warm beige, and a small amount of plant green. In the upper right corner or a clean white area, add the English city name in uppercase letters, soft blue-gray, with relaxed letter spacing. Below, add a short refined English phrase, e.g., A quiet walk through light. / Soft streets, lasting memories. / A memory drawn in watercolor. Prohibited: photographic realism, 3D, heavy digital watercolor, landmark collage, huge foreground objects, crowded composition, thick black outlines, high-saturation commercial colors, text spelling errors, obstructed text.