Dak, you have taken the image quite a long way. I like the way you addressed the background and the top of her head.
I find the eyes just a little over sharpened. It may be my taste but they border on being a bit too sharp and glowing. The nostrils seem a bit too dark; they would not be that dark - more like in the before image.
You have cleaned up the hair well but the fly-aways that I circled do not look very natural. You might want to try removing them completely.
Finally I find the skin still somewhat anemic. Those numbers are LAB values of the B channel. The negative values indicate blue. Even if the lady has a pale complexion I would expect the values to be slightly positive.
In any case the image has come a long way and you have made some nice retouching over the original.