I like this very much, David, but (since this is in critiques) I'm wondering if you could lose the roll of paper towels on the left side.
Have you tried working in daylight, or does your daily schedule not permit it?* I really believe that skin looks best in diffuse indoor daylight from a single high light source. Of course you might not believe in the concept of putting yourself in the best possible lighting condition, but when I paint a self portrait I sure give myself all the help I can get.
Edit: I see Michelle has already asked you this question, sorry, I guess I missed it.