I really like this! c: I love the colours you chose for this, and the fact that he has a heart (heart of the team, heals people, keeps them alive. Love that ;u; )
I love the shading with the cool colours, and his glasses. I cannot draw broken glass for the life of me. I think that looks so cool c:
The one thing that throws me is that hair sticking up on his head. I understand that you're trying to make his hair look messy (or maybe it's there all along on the original design and I never noticed), but it just throws me off.
I do like this a lot overall c: Nice job!