A couple of things I noticed...the one on the left doesn't seem to have the deep set eyes of the one on the right. it could just be the glasses, and an eye brow shave, but they just don't look the same. The other thing I noticed is that the width of his top lip under his nose...which seems kind of narrow on the right...but then check out the mustache on the left. That thing is much, much wider from nose to lip than the available room appears on the right. Then there are the ears....that's obvious and finally, in the picture on the right, if you follow the middle "v" crease in his forehead, it leads to a ridge on top of his head. Although you can sorta see the middle "v" crease in the picture on the left, it does not lead to a ridge on his head. I'm not sure how you could get rid of a bone ridge..