s8n, I like that head shot. The only things is that her left side looks a bit wierd since its further away, but brighter, I would try pulling that light back further, or giving it less power. What you could also try for an effect is bringing the left light more around to the back, so her hair gets backlighting, since it looks like you'll have enough bounce from the walls to fill in the darker parts of her face in the front too.
Gosh I wish I had enough to get model lights. :/