I'll agree with Andrew about the eyebrow and the fold of skin directly below the eyebrow. Also as previously mentioned, there are some areas that would benifit if you were to spend a little more time on the general portions of the photograph (finishing touches). This would include evening out the background to cover the repaired areas and smoothing out the shadowed area of the face and lower neck. Afterall, you managed to completed the hard stuff quite well.
That said, you done a good job on a difficult picture.