He's not that funny looking! It's just oddly retouched. Cute kid, looks kinda like my nephew.Alien mix baby ... ?
My god that is an ugly kid
I thought the before & after pictures got reversed.
Anyway, while I don't know of some magical filter that could automatically do this, I wouldn't call it a fake. It's certainly possible to do retouching of this degree.
As someone else likely said, just crop the head, touch up, attach to another kid's body. Or keep the head and retouch it, find a new shirt and background, then retouch what's left over.