创作一幅纵向编辑风格旅行插画，灵感来自复古欧洲旅行海报，呈现一座宏伟城市公园中宁静的夏日午后，背景是具有辨识度的曼哈顿式天际线。采用细腻的手绘…

Create a vertical editorial travel illustration inspired by vintage European travel posters, featuring a peaceful summer afternoon in a grand city park with a recognizable Manhattan-style skyline in the background. Use delicate hand-drawn ink outlines combined with soft, slightly imperfect watercolor washes on warm textured cream paper. Show a wide green lawn filled with people relaxing, reading, walking, jogging, cycling, and having picnics. In the foreground, a casually dressed young couple sits together on a picnic blanket beside a woven basket. Include elegant black vintage park lamps, winding pathways, dense leafy trees framing the composition, and detailed historic and modern skyscrapers rising behind the park. Add a small picturesque stone arch bridge over a calm pond near the bottom of the artwork. Use muted sage green, olive, warm beige, soft blue, pale gray, and subtle golden sunlight, with natural watercolor bleeding, paper grain, fine pen hatching, and an airy sophisticated travel-journal aesthetic. No text, no letters, no logos, no typography, no captions, no signs. Vertical 4:5 composition, highly detailed, elegant, nostalgic, handcrafted watercolor-and-ink illustration.