Its an outline of a human skeleton with the right hand leaning on a wall and the left hand on its hip. it was unfinished and a version with shadows and lighting was lost :( you are welcome to take this furter 人类 骨架 头骨 人类 Skeleton(Outline)
A diagram showing back and side views of the human skeleton, circa 1900. (Photo by Hulton Archive/Getty Images) 白色背景 解剖 人类的表示形式 Human Skeletons