Man, his head looks really weird and insect-like.



Personally, I imagined something similar to this, but with more emphasis on his lower jaw, since he's got the tattoos. Sort of like with Mark Gibbons' Sha Brethren art, but with only the lower jaw transformed and monstrous. It might make him look a bit like Deathwing, but I think it ties in with his history.



Still, interesting concept. The way the armor has started to fuse with his flesh reminds me of some of the scrapped Wrath of the Lich King cinematic concepts for Arthas.