Wow, that's impressive. Really calls back to jigrael's excellent Demon Knight model (the head especially). That sword is epic & the animations are tight too.
I have to say, though, while you've done an impressive job of wrapping textures smartly & uniquely, you've chosen some really... I don't want to say "cluttered/messy" textures, but at least very busy, intricate textures. There's just a lot going on with nearly every inch of this guy, and zooming out to the in-game view he just starts to look somewhat of a muddled mess (especially on top of Blight as he's bound to be, and surrounded by SFX as he's bound to be).