Assignment:
Trace your image and use a little charcoal on the back of the tracing to transfer the image to your paper. Then draw in the lines so that when we build up the shadows with charcoal and rub it in, the original drawing doesnt get lost. Build up the shadow shapes using the posterized image. Once you have done that work into the shadow shapes  and bring out the detail. We are saving the mid-tone and light work for next week

Demo Drawing
Charcoal on Toned Paper
11x14