For me I would like to see the same shot but with the light raised a bit. I think that my brain is happier with a single light from a raised position, but then my brain is getting on a bit LOL. Also, I think the BG light is a touch strong also, just eating a bit too much hair detail at the edges.
Gosh that sounds a bit negative, and I'm not sure I've actually answered the question... although in asking it, maybe you have? I little reflected light might have reduced the shadow to the side of her mouth, which for me is the only real shadow that detracts.