All in all, a pretty solid piece of work. As mentioned, I'd also agree that the edge highlights and appearance of the blue is good. It seems to lose consistency of highlighting on the face and arms, though. I'm thinking that a lot of the current solid colors could benefit from washes or glazes (eyes, skulls, belly scales in parts) as I don't think there's enough contrast between the current main colors and the shading/shadows of the figure.
(If you modeled the wide base and pile of skulls, that's a nice effect! If you didn't, well... it's still a nice effect.)