I opened the jpeg as a smart object in PS, then duplicated the layer to make separate adjustments on the background in ACR.
Attempted to rearrange the catchlights in the eyes and balance the skin tones between the two girls.
Blurred the background and removed lint from sweater.

forum discussion: http://forums.dpreview.com/forums/read.asp?forum=1006&message=30144989
original image by Bulldogs: