Penthouse Stripper

Last semester Sam told me she had a hard time drawing portraits. Before taking portrait drawing she took figure drawing and her figures had blank ovals for heads and faces. The sketchbook progressed from figures without heads to studies of heads without figures. I found the sequential development quite unusual. Her response was that the only portfolio she was interested in was a stock portfolio. Below is the most recent drawing which she sent of a Penthouse stripper. The stripper and her head are composed on the same sheet, but separate:
Self-portraits in the mirror: