Basic Drawing Made Amazingly Easy (Made Amazingly Easy Series)

Using only line work, outline where you would like the shadows to fall
by generally following the contours of the body. Indicate other
shadowed areas where the body blocks the light. To do this, you have
to choose the position of the light source. I imagine that the light is
coming from overhead, somewhere off to the right. That means the
shadows on the body will be cast to the left.