Drawing basics: Angles and basic shading
绘图基础知识：角度和基本阴影
Redraw this picture as carefully as you can, focusing on angles and shading. Capture the shapes and aim for clean, smooth shading.
尽可能仔细地重画这张图片，重点关注角度和阴影捕捉形状并力求干净、平滑的阴影。
Kazimir Malevich, Woodcutter, 1912-13
卡齐米尔·马列维奇，樵夫，1912-13