It looks great, but I can't say "natural" because we simply don't know what color a Triceratops had... The common perception is that all dinosaurs where grey, which means the look in the first picture. It's also easily recognizable as a rhino/elephant/hippo style of skin, which makes it appear genuine to us. However, there are theories now that dinosaurs might have been more colorful than we thought, which implies that the second picture might be pretty realistic as well. We just don't know...