悬疑小说雨夜章节开篇插图

一幅悬疑小说章节开篇插图，黑色墨水渲染于冷压纹理纸。夜间油亮鹅卵石小巷，中景视角，单盏煤气灯将白光投在湿润石面。背景深处，长衣人影刚转过墙角。湿染技法营造深暗水晕，细干笔触勾勒雨线与灯柱纹理。构图竖窄，如章节旁注，四周留白。氛围紧张、孤寂，黑色电影感十足。

A chapter-opener spot illustration for a printed mystery novel, drawn in black ink wash on textured cold-press paper. Scene: a rain-slicked cobblestone alley at night, viewed from mid-height. A single gas-lamp casts a stark circle of white light on the wet stones below. In the far background, a shadowy silhouette of a figure in a long coat disappears around a corner. The ink wash uses wet-on-wet blooms in the deep shadows, with finer dry-brush lines for the rain streaks and lamp post texture. Foreground cobblestones are rendered with gestural calligraphic strokes. Composition is portrait, roughly one-third of the page width, meant to float at the start of a chapter with white space around it. Mood: tense, lonely, cinematic noir. No text. Tonal range: pure white to dense black with rich mid-greys.