oh, okay, so its more of an opinion thing. that predator is the only one out of those four to use that color pallet... if it matches the symmetry of the skin pattern thats already there, it seems weird to me that it would be perceived as unnatural. the only other place it appears on his body, though, is his hands. i've just never heard any design team member or anyone affiliated with the movie say anything insinuating he had tattoos.