I like him very much. The texture on his body/face looks very solid and coherent. No crits there...
There are a few things designwhise i'd do different. The pikes on his back that hold the artifact are a cool idea imo, but they're quite a big character feature, so I would've made them alot bigger.
The arms have quite alot of edgeloops, running all over the place. But there's so little definition in the silhouette. If you look purely at the silhouette it's almost as if the arms were just tubes. I think if you would've defined the deltoid muscle more (mind the translation there), it would've made the sholders look even more massive, and give the arms that bit of definition they need...
Overall it's a very nice piece imo, great job!
