I found an old sketch of one of my characters, and decided to play with it as a portraiture test-- it's been a while, but I think I've learned quite a bit. I'm quite happy with how it turned out.
Original sketch, from March 2012. It's pretty solid, a couple of funky spots. But a bit flat and out-of proportion.
The underlying shading, half-finished, started a day ago. Really fleshed out the form, fixed some of the proportions, felt good to see it come out so nicely.