复古城市旅行海报 - [CITY, COUNTRY]（3:4）

VINTAGE CITY TRAVEL POSTER - [CITY, COUNTRY] (3:4) A loose, hand-painted watercolor-and-ink travel sketch of [CITY], with fast broken lines, uneven washes, generous bare paper, and warm golden-hour light. Bright white cold-press paper — no cream or sepia cast. SUBJECT Hero: [PRIMARY LANDMARK], viewed from street level, frontal and slightly upward-tilted, full height within the frame, occupying roughly 68–75% of the poster height and positioned on the right third. Behind it: [SECONDARY LANDMARK], smaller and lower on the left, with 2–3 soft architectural masses suggesting the surrounding city. Include only the landmarks specified — no unrelated attractions. IDENTITY LOCK The primary landmark must remain clearly recognizable through its defining silhouette, proportions, major structural features, and distinctive crown, roofline, dome, spire, or tower top. These features receive the strongest contrast and must never be cropped or lost into the paper. COUPLE A young couple seen from behind, arms linked and walking toward the landmark, with one looking upward. They occupy 14–18% of the poster height within the bottom 22–25%. Mid-century travel coats, a small handbag, and compact suitcase. Use simple silhouettes with minimal strokes. No faces, fingers, detailed clothing folds, or extra figures. LINE Loose, broken, imperfect ink contours. Lines may skip, overshoot corners, vary in weight, or stop before connecting. Background buildings remain highly gestural — simple rooflines, corners, and vertical suggestions. Never draw individual windows or bricks. Some forms should exist only as watercolor washes. WATERCOLOR Use irregular, transparent washes rather than solid fills. Show natural blooms, backruns, wet-in-wet bleeding, pooled pigment, dry-brush skips, dissolved edges, and subtle paper-grain granulation. Washes may slightly overshoot or fall short of the ink. Keep overall coverage around 55–65%, leaving generous bare paper in the sky, distant city, sunlit surfaces, pavement gaps, and outer edges. VALUE & DEPTH Add 6–10 small dark accents in burnt umber or dark indigo around structural shadows, recessed areas, beneath the vehicle and couple, and near the landmark base. Foreground has the strongest pigment and clearest line. Distant buildings use only 15–25% pigment strength in dusty blue-gray and hazy peach, with almost no linework. LIGHT & COLOR Golden-hour light coming from the left, creating one illuminated side and one shaded side on the landmark. Palette: warm limestone cream, pale apricot, warm gray, dusty steel blue, and soft graphite. Use only one saturated city-specific accent color: [ACCENT COLOR]. PROPS — 3 ONLY [PRIMARY VEHICLE / TRANSPORT ELEMENT], one lamp post, and one striped awning edge. TEXT No text anywhere: no titles, signs, logos, numbers, storefront names, or pseudo-lettering. Keep the top 15–18% completely clean for later typography. AVOID Photorealism, CGI, 3D rendering, generic AI architecture, duplicated or hybrid landmarks, warped structures, incorrect proportions, repetitive windows, mechanical linework, extra figures, visible faces, flat fills, neon colors, excessive detail, edge-to-edge painting, floating objects, inconsistent scale, or garbled text. Bare paper beats invented detail. RECOGNITION FIRST, VALUE SECOND, ATMOSPHERE THIRD, DETAIL LAST.

复古城市旅行海报 - [CITY, COUNTRY]（3:4） 一幅松散、手绘的水彩与墨水旅行速写，描绘 [CITY]，带有快速断续的线条、不均匀的水彩晕染、丰富的留白以及温暖的金时刻光线。亮白色冷压纸 — 无奶油色或深褐色调。 主体 主角：[PRIMARY LANDMARK]，从街道水平视角观看，正面略微向上倾斜，画面内为完整高度，占海报高度的约 68–75%，位于右侧三分之一处。 其后方：[SECONDARY LANDMARK]，位于左侧更小、更低的位置，配有 2–3 个柔和的建筑体块暗示周边城市。仅包含指定的地标 — 不要包含无关景点。 身份锁定 主要地标必须通过其标志性轮廓、比例、主要结构特征以及独特的塔冠、屋顶线、穹顶、尖塔或塔顶保持清晰可辨。这些特征获得最强对比，绝不能被裁切或消失在纸张中。 情侣 一对年轻情侣从背后看到，手臂相挽，朝地标方向走去，其中一人抬头仰望。他们占据海报高度的 14–18%，位于底部 22–25% 范围内。 中世纪旅行外套、一个小手提包和一个紧凑的手提箱。使用简单的剪影与最少笔触。无面部、手指、详细的衣物褶皱或额外人物。 线条 松散、断续、不完美的墨水轮廓。线条可以跳跃、超出转角、改变粗细，或在连接前停止。 背景建筑保持高度概括性 — 简单的屋顶线、转角和垂直暗示。绝不要绘制单个窗户或砖块。某些形态应仅以水彩晕染存在。 水彩 使用不规则、透明的水彩晕染，而非实心填充。展现自然晕染、回流、湿叠湿渗色、颜料堆积、干笔跳笔、溶解边缘以及微妙的纸纹颗粒感。 晕染可以略微超出或未到达墨线。保持整体覆盖率约 55–65%，在天空、远处城市、日照表面、人行道缝隙和外部边缘保留丰富的留白。 明度与深度 在地标结构阴影、凹陷区域、车辆和情侣下方以及地标基座附近添加 6–10 个以烧赭色或深靛蓝呈现的小型深色点缀。 前景具有最强的颜料和最清晰的线条。远处建筑仅使用 15–25% 的颜料强度，呈尘蓝灰色与朦胧桃色，几乎无线条。 光线与色彩 金时刻光线从左侧射来，在地标上形成一侧受光、一侧阴影。 调色板：温暖石灰石奶油色、淡杏色、暖灰色、尘钢蓝与柔和石墨色。仅使用一种饱和的城市专属点缀色：[ACCENT COLOR]。 道具 — 仅 3 件 [PRIMARY VEHICLE / TRANSPORT ELEMENT]、一根路灯柱和一条条纹遮阳篷边缘。 文字 任何地方都不要有文字：无标题、标志、徽标、数字、店面名称或伪字母排版。保持顶部 15–18% 完全干净以便后期排版。 避免 照片写实、CGI、3D 渲染、通用 AI 建筑、重复或混合的地标、扭曲的结构、不正确的比例、重复的窗户、机械的线条、额外人物、可见面部、平涂填充、霓虹色、过多细节、边缘到边缘的绘画、漂浮物体、不一致的尺度或乱码文字。 留白胜过编造细节。 识别第一，明度第二，氛围第三，细节最后。