Oh My.... That is not going to be easy but do-able. Looks like a full straight on flash. Changing the background might be a good idea but not easy on this picture around the back of the head. Also the jumper will require 'toning' down a bit and the flash bounce back on the face.

Good luck, sorry but I have not time a the moment to play with it, but I'm sure others will with their potato-shop skills.

Steve