钢笔线稿场地现状分析图：历史街区

场地现状分析图，主体为历史街区，微倾斜俯视轴测，手绘钢笔线稿风格，细腻的墨线，极少量淡彩，水墨灰配色，宣纸白与深浅不一的墨灰，现状建筑分级色块，等高线与水系，问题点与潜力点图标，引线连接的现状照片小框，构图简洁，信息层级清晰，大量留白，画面中不出现文字和标注，高清，适合设计展板

existing site condition analysis diagram of a historic street block, slightly tilted top-down axonometric view, hand-drawn ink line drawing, fine pen strokes, minimal light color wash, ink wash palette of rice paper white and layered ink greys, color-coded existing buildings, contour lines and water bodies, problem and opportunity markers, callout frames with small site photo thumbnails, clean composition, clear visual hierarchy, generous white space, no text or labels in the image, high resolution, architecture presentation board