Keep That Pencil Moving!

A continuous-line drawing from yesterday. Here's what I find most useful and intriguing about this:
1) there's a complete lack of expectation about these--it's an exercise, not intended to be a finished product--and for someone like me, who struggles to let go and just make art, this is huge.
2) these make me focus on shapes rather than line. I can see the planes in the face--