Sorry, I forgot to post a new picture. I've been working a lot on the head this weekend, though (sort of).
Ignore the shading problem between the nose and the mouth, I'm too lazy to fix that right now. Things left to finish include parts of the hair, the nose (specifically, the bridge) and a few other details improving the overall depth of the face.

The hair looks kind of silly from the side, though. I'm thinking about going with the simple look of the combo burst image and just have two or three stripes of black hair followed by flat, "normal" hair instead of having stripes all the way to the back.
Ignore the shading problem between the nose and the mouth, I'm too lazy to fix that right now. Things left to finish include parts of the hair, the nose (specifically, the bridge) and a few other details improving the overall depth of the face.
The hair looks kind of silly from the side, though. I'm thinking about going with the simple look of the combo burst image and just have two or three stripes of black hair followed by flat, "normal" hair instead of having stripes all the way to the back.