粗砺质感炭笔素描：原始与优雅的交织

一幅subject的炭笔素描，笔触粗犷，纹理分明，明暗对比强烈，线条大胆。背景是模糊的渐变和速写本的痕迹，赋予其一种粗犷、未经雕琢的优雅。

A charcoal sketch of a subject, raw and textured with expressive shading and bold linework. The background is filled with smudged gradients and sketchbook marks, giving it a gritty, unrefined elegance.