Been lurking here for a looong time. And I know I need mucho improvement, and this section has always been quite the inspiration. These are all done in Sketchbook Pro on my TabletPC.
Some gestures and value studies from photoref (over on the CGTalk anatomy forum). My gestures need a lot of work, as far as line confidence goes, that's for sure.
And a self portrait I knocked up tonight (this one's from life, not photoref).
Cheers, and tear me a new one!