W.O.W
Has potential.
Mapping on the horns is a little bad, as it starts to twist at the top
It also lacks any solid details on the side on the 3d view, it looks like you put all your effort into the face and completely forgot about the back / sides
Also why is the hair on heir face black, the the hair on the helmet is grey?

tldr; add more details on the back / sides. The armor can also use some touching up