I agree, the skin needs to be a bit darker. I had a bit of trouble getting it the right shade - I'd move the bar down and he'd be too dark. So I have to play with it a bit more so he still looks Native American but not African American.
Yes, I think it's EA's hair, but it has a glitchy problem on the right side and morphs into the ear on some shots, so I had to discard those. I tried a ton of hair on him, but this style suited him best.
Here's another one I just took in the game and darkened his skin: