[chubot]

It's also probably that it's easier to spot fake humans than to spot fake cats or camels. We are more attuned to the faces of our own species

That is, AI humans can look "creepy" whereas AI animals may not. The cowboy looks pretty good precisely because it's all shadow.

CGI animators can probably explain this better than I can ... they have to spend way more time on certain areas and certain motions, and all the other times it makes sense to "cheat" ...

It explains why CGI characters look a certain way too -- they have to be economical to animate