as a design, it maintains a fairly strong sense of balance and design, although id love if those little yellow flashes were not only on the head.
in terms of the artwork itself, i would say to avoid such rigid and conflicting lines, theres too many paths for the eye to follow and therefor the object becomes visually "sticky" in that the eye cannot move within it as a form. Adjusting the pose to have more flow and simplifying the more dithered areas will help in this, and establishing a lightsource would help significantly.
welcome to the forums and good luck with your work