I love it, Lisa! I like the new background is much better, and I think the shadowed side of her face looks somehow even better now.
Would you mind telling me what you used as the underpainting? Was it monochromatic? Did you do use transparent shadows and opaque lights and let some of the underpainting show through or did you cover it completely? I ask because I did an underpainting a couple of times but ended up painting as I usually do on top, so I am not sure what affect the underpainting really had for me but I'd like to try again and be a bit more disceplined about it.