Spaz, I'm in the same boat. Only two days and I have to draw two of the characters still and all of the bg. Ugh ;_;
Like I said in the chow thread, those faces are hilarious. That paintover solves some issues, but another thing to look at is the girls front leg. It's pretty thick. The thigh is thicker than her waist and the calf is almost that thick. Since the rest of your painting is realism, I'd maybe work on that area a tad.
Otherwise, I really think it's looking great!
'Cuz life is full of your regrets, and I should be one...