Charcoal on 14x17 vellum bristol. I simply worked this one from memory, but I couldn't remember the labels of the gradiations of shades on the sphere.
Since class is done, I tried to continue practicing and applying the things I've learned. This time I had all the time to finish one art work at a time,and I tried to be more careful on my proportions and rendering of charcoal. If you would notice I avoid making the lines so obvious to make the art done painterly. The models were copied from a book and all I did is to capture the pose; I invented the lighting on it to give more drama.