You could work on the face a little bit more. Look at the eyes and then the mask; The eyes are too centralized, along with the...White thing on the side of his face. The outline from the bottom part of his suit looks kinda "rough", could be less straight. And finally, the hand looks too big, I believe it would look better without the fingers holding the clip. I like it, but has room for improvement. If you remake it, PM me the link to the post please, I'd love to see it!