Monochrome ink drawing of a lean, athletic male back and shoulders. The figure is captured from a rear angle, highlighting intense muscle definition and the spine. Hands are spread wide, showing detailed tendons and bone structure. High-contrast hatching creates deep shadows, emphasizing the "dry body" aesthetic.

Day 3. Anatomy & structure study

Focusing on the tension of the back muscles and the skeletal structure of the hands.

3日目。解剖学と構造の練習。
筋肉の緊張と手の構造に焦点を当てています。

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