In Class Contour and Shading 5

We were told to start with a ground. I couldn't see too well since the teacher had the main lights off and spotlights on the models. I used charcoal, eraser, and white compressed charcoal for highlights. Something special happens when I start with a ground.
This is probably one of my favorites from the class. Sorry about the head, the couch the model was on was blocking it at the armrest.

I'm half tempted to make this a print... ?