Summer Sketchbook Challenge: Portraits of the backs of people's heads

This summer a few artists and myself are challenging ourselves to draw regularly. We're calling it the Summer Sketchbook Challenge. Head over to the Summer Sketchbook Challenge blog to see who's in. We're always open for more. If you're interested, leave a comment over there with your email address and I'll add you to the group.

 

This was from Sunday, can you tell? :) 

A dear soul who is participating in the Summer Sketchbook Challenge is actually represented in one of the above portraits. Any guesses on who?

I'm guessing you'll see this page again at a later date when the rest of the boxes get filled on future Sunday mornings.