When you put little mac's transparency over shulk it will look like they share a lot of characteristics only because you are just seeing Shulks details though the transparency not because they are actually shared. Actually look at the two pictures and there are no similarities. Mouth shape, nose, bone structure, jawline, and even cheekbones are all different. It would have been just as easy to make a model from scratch as it be to take it from LM. I'm not saying the leak isn't fake, I'm just saying that Mac has nothing to do with, and frankly nothing even in common with Shulk.