Nothing. Huan is Celegorm's dog. He is OP. So I tried to go for the minimalistic style again, and it worked. Sort of. His design is based loosely on a German shepherd. You can see it in the face. Overall, I'm actually quite proud of this.
Tolkien and I. There's no room to tell the entire story of Huan the Hound, so just read the Silmarillion. He's actually really cool. He took on Sauron (the dark lord) and WON.