极简水彩城市速写
一份详细的提示词，用于创作纽约城市场景的写意水彩与墨水速写，侧重于质感和未完成的边缘效果。
3:4 vertical minimalist {argument name="style" default="watercolor and ink urban sketch"} on cold-press handmade paper. Loose studio sketch, not a finished illustration.
FINISH GRADIENT (priority): the couple is the only fully resolved area. Nearby architecture ~60% painted, with clear patches of bare paper and contour line breaking through. Distant buildings and frame edges dissolve into loose graphite and untouched paper before the border. ~20% of the page stays unpainted, mostly upper area and edges. Background is bare paper, not a painted sky. Unfinished edges are intentional.
SCENE: {argument name="location" default="Top of the Rock observation deck, Midtown Manhattan"}, clear afternoon. Two lovers at the stone parapet seen from behind, shoulders touching, one leaning in and pointing toward the Empire State Building. Wind in hair and a light cardigan. Quiet, unposed.
COMPOSITION: High vantage point. Couple small and back-turned in the lower third. Empire State Building off-center mid-distance. High horizon, deep space, generous open paper above.
WASH: Wet-on-wet bleeding with blooms and backruns. Washes deliberately offset from the ink lines, spilling past contours and stopping short of others. Strong dilution variation within one facade — saturated, ghost-pale, and bare paper in turn. Visible granulation in the paper tooth. Hard wet-on-dry edges beside soft blooms. Reserved white paper as highlights, never white paint.
LINE: Fast searching graphite and fine ink, construction marks left uncorrected. Scribble loops for railings and distant windows instead of literal detail. Weight varies hairline to bold. Faces suggested in a few marks.
VALUE: High-key and airy, with exactly one deep dark note — the shaded face of the nearest rooftop tower in ink navy.
COLOR: {argument name="color scheme" default="Cool blue-dominant"}. 55% slate blue, dusty cerulean, powder blue, pale blue-gray. 20% bare warm off-white paper. 15% warm stone gray and limestone as mid-tone relief against flat monochrome blue. 10% taxi yellow on sunlit edges. Muted, low saturation.
TYPOGRAPHY: Upper right, italic "New York" with one short poetic English line below in muted slate navy, absorbed into the paper.3:4 竖构图极简 {argument name="style" default="水彩与墨水城市速写"}，绘制于冷压手工纸上。松弛的画室速写风格，非成品插画。
完成度渐变（优先级）：画面中仅人物部分完全刻画。周边建筑约 60% 上色，保留清晰的留白区域，轮廓线穿插其中。远景建筑及画面边缘溶解为松散的石墨线条与留白，直至边框。约 20% 的页面保持未上色，主要集中在上部及边缘。背景为留白，而非绘制的天空。未完成的边缘为刻意设计。
场景：{argument name="location" default="洛克菲勒中心观景台，曼哈顿中城"}，晴朗的午后。一对恋人背对镜头站在石质护栏旁，肩并肩，其中一人倾身指向帝国大厦。微风吹动发丝和轻薄的开衫。安静，自然，非摆拍。
构图：高视角。人物位于下三分之一处，背影较小。帝国大厦偏离中心，位于中景。高地平线，深远空间，上方留白充裕。
渲染：湿画法渲染，带有水渍和回流效果。水彩晕染刻意偏离墨线，溢出轮廓或在轮廓前戛然而止。同一立面内色彩浓度变化强烈——饱和色、幽灵般的淡色与留白交替出现。纸张纹理可见明显的颗粒感。湿画法边缘与柔和的晕染边缘并存。利用纸张本身的白色作为高光，绝不使用白色颜料。
线条：快速搜寻式的石墨线条与精细墨线，保留未经修正的构图痕迹。用涂鸦式的圈圈表现栏杆和远处的窗户，而非刻画细节。线条粗细变化从发丝般纤细到浓重。面部仅通过几笔勾勒暗示。
明度：高调且通透，仅有一处深暗色调——最近处屋顶塔楼的阴影面，使用深海军蓝。
色彩：{argument name="color scheme" default="冷蓝色调为主"}。55% 板岩蓝、灰天蓝、粉蓝、浅蓝灰。20% 温暖的灰白色留白。15% 暖石灰和石灰岩色作为平铺单色蓝的中间调点缀。10% 出租车黄点缀在受光边缘。色彩柔和，低饱和度。
排版：右上角，斜体 "New York"，下方配有一行简短的英文诗句，颜色为柔和的板岩海军蓝，融入纸张纹理中。