浪漫城市夏日水彩素描旅行海报

Create a 3:4 vertical watercolor urban sketch travel poster on textured handmade watercolor paper.

City input:
[CITY NAME]

Create a romantic everyday scene reflecting the real architecture, landmarks, street life, climate, and cultural mood of [CITY NAME]. Use recognizable city-specific elements such as local buildings, cafes, balconies, canals, bridges, trams, towers, rooftops, tiles, waterfronts, street furniture, plants, or signs. Avoid generic European scenery or incorrect landmarks.

Main scene:
Show two lovers as the main subjects, placed slightly below center. They may be walking, sitting at an outdoor cafe, sharing iced coffee, standing near the water, looking at a view, or gently holding hands. Their pose should feel natural, affectionate, quiet, and unposed. Do not show a single person.

Characters:
Dress the couple in stylish casual summer clothing suited to [CITY NAME]: linen shirts, light cardigans, relaxed trousers, summer dresses, sneakers, sandals, sunglasses, crossbody bags, tote bags, cameras, pastries, or iced drinks. Use mostly white, pale blue, aqua, and soft gray-blue clothing with one or two small lemon-yellow accents. Add gentle wind movement to hair and loose fabric.

Composition:
Use a clean vertical poster layout with large negative space and an airy editorial feel. Keep the couple small to medium in scale, framed by city-specific architecture or scenery. Place buildings and landmarks in the background or along the sides, softly blended into the paper texture. Keep the upper half bright and open, with the upper right reserved for typography.

Typography:
In the upper right corner, add the city name in elegant italic English lettering:
"[CITY NAME]"

Directly below, add one short poetic English sentence matching the city's fresh summer mood. Use delicate soft cobalt, gray-blue, or muted navy lettering. Keep it minimal, readable, and naturally integrated into the paper.

Color direction:
Use a refreshing blue-and-yellow summer palette:

75% cool blues and blue-grays: sky blue, cyan, pale aqua, powder blue, faded turquoise, soft blue-gray, selective cobalt.

15% clean white and warm off-white paper highlights.

10% pale lemon yellow, soft butter yellow, sunlit cream, or light golden accents.

Blue should dominate while yellow adds warmth and visual rhythm. Use yellow only as accents in awnings, window light, flowers, umbrellas, pastries, signs, clothing details, drink labels, or sunlit building edges. Avoid an all-blue flat background.

Watercolor technique:
Use translucent washes, soft blue bleeding, subtle pigment granulation, wet-on-dry textures, gentle brush blooms, pale shadows, visible handmade paper texture, minimal splashes, and delicate reflections where appropriate. Yellow washes should feel like light touching paper.

Drawing detail:
Use delicate thin ink line art with slightly imperfect hand-drawn lines. Add refined urban sketch details: windows, shutters, balconies, streetlamps, cafe chairs, paving stones, railings, plants, clothing folds, hair strands, hands, shoes, bags, cups, signs, and soft ground marks. Keep faces softly suggested, not realistic.

Mood and quality:
Minimalist watercolor urban sketch, romantic summer travel poster, quiet love story, city-specific atmosphere, breezy blue palette with lemon-yellow highlights, elegant fashion illustration, cozy slice-of-life, Japanese-inspired softness, premium editorial look, calm pastel mood, soft natural lighting, clean background, poster-ready, 8K.

Negative prompt:
single person, generic city, incorrect landmarks, all-blue background, monochrome blue, lifeless colors, yellow-dominant, orange-heavy, brown-dominant, dark vintage, muddy beige, neon colors, oversaturated colors, photorealistic, 3D render, heavy outlines, harsh shadows, crowded street, cluttered background, realistic faces, stiff pose, awkward anatomy, glossy texture, bold typography.

在具有纹理的手工水彩纸上创作一张 3:4 垂直比例的水彩都市素描旅行海报。

城市输入：
[城市名称]

创造一个反映 [城市名称] 真实建筑、地标、街道生活、气候和文化氛围的浪漫日常场景。使用可辨认的特定城市元素，如当地建筑、咖啡馆、阳台、运河、桥梁、电车、塔楼、屋顶、瓷砖、滨水区、街道设施、植物或标志。避免通用的欧洲风景或错误的地标。

主场景：
展示两个恋人为主要主体，位置略低于中心。他们可能在散步、坐在室外咖啡馆、分享冰咖啡、站在水边、观赏风景或轻轻牵手。他们的姿势应该感觉自然、深情、安静且非摆拍。不要只展示一个人。

角色：
给这对情侣穿上适合 [城市名称] 的时尚休闲夏装：亚麻衬衫、轻便开衫、休闲裤、夏装连衣裙、运动鞋、凉鞋、太阳镜、斜挎包、手提包、相机、糕点或冰镇饮料。服装颜色以白色、浅蓝色、水蓝色和柔和的灰蓝色为主，点缀一两个柠檬黄。在头发和宽松的织物上添加柔和的风感。

构图：
采用简洁的垂直海报布局，留有大量负空间和通透的社论感。将情侣的比例保持在小到中等，由特定城市的建筑或风景环绕。将建筑和地标放置在背景或侧边，柔和地融入纸张纹理。上半部分保持明亮开阔，右上方留给排版。

排版：
在右上角，用优雅的斜体英文添加城市名称：
"[CITY NAME]"

紧随其下，添加一句简短的、符合城市清新夏日氛围的诗意英文句子。使用精致柔和的钴蓝、灰蓝或静谧的海军蓝字体。保持极简、清晰，并自然地融入纸张。

色彩方向：
使用清新的蓝黄夏日色调：

75% 的冷蓝色和蓝灰色：天蓝色、青色、淡水色、粉蓝色、褪色的绿松石色、柔和的蓝灰色、局部的钴蓝色。

15% 的洁净白色和暖白色纸张高光。

10% 的淡柠檬黄、柔和的奶油黄、阳光下的乳白色或轻盈的金色点缀。

蓝色应占主导地位，而黄色则增加温暖感和视觉节奏。仅在遮阳篷、窗光、花卉、雨伞、糕点、招牌、服装细节、饮料标签或阳光照射的建筑边缘使用黄色。避免全蓝色的平面背景。

水彩技法：
使用半透明的晕染、柔和的蓝色渗色、细微的颜料颗粒、湿画法纹理、柔和的笔触渲染、浅色阴影、清晰可见的手工纸纹理、少许溅痕以及适当的微妙反射。黄色晕染应感觉像光线触碰纸张。

绘画细节：
使用精致的细墨线线条，带有略微不完美的手绘线条感。添加精致的都市素描细节：窗户、百叶窗、阳台、路灯、咖啡椅、铺路石、栏杆、植物、衣褶、发丝、手部、鞋子、包袋、杯子、标志和柔和的地面痕迹。面部保持柔和的示意感，不追求写实。

氛围与质量：
极简水彩都市素描，浪漫夏日旅行海报，安静的爱情故事，特定城市的氛围，带有柠檬黄亮点的清爽蓝色调，优雅的时尚插画，温馨的生活片段，日系风格的柔和感，高级社论外观，平静的粉彩氛围，柔和的自然光，洁净的背景，海报就绪，8K。

负向提示词：
单人，通用的城市，错误的地标，全蓝色背景，单色蓝色，死气沉沉的颜色，黄色主导，橙色沉重，棕色主导，深色复古，浑浊的米色，霓虹色，过度饱和的颜色，照片写实，3D 渲染，粗重的轮廓，生硬的阴影，拥挤的街道，凌乱的背景，写实的面部，僵硬的姿势，别扭的解剖结构，光滑的质感，粗大的字体。