The posing of the character feels pretty good.
I think you got this nice graceful feeling to the overall body, but you can see in the linework that they are tough as nails.
The shading and color are really good too, you can tell what materials are which for the most part.
There is one thing that is bothering me though, it's his left hand... his thumb looks really long!
It's not something everyone would notice it right away, but once you see it makes it feel a little off, you know?
Either way, I think this is a great piece!
Hope to see more from you in the future!