Like if it was just cutted off from an old comic ^^
I think I understand which was your intention when painting the model, but I see some problems with the shadows and those "harsh" highlights, specially on the big purple hand, and the center-lower part of the body.
Best parts, or at least I think so, are the shoulders, chest, abs and his back too. I also find the rear part of the extended leg very good. But there seem to be a lot of definition problems on the face/head on the arms/hands.
There are also problems with the sculpt on the big purple fingers... they look like broken on the tips?
I think that the problem with the face could be too much white/reflexes so it makes it difficult to the eye to read the information.
I am hoping to help you out with this critique, just trying to give constructive critisim here. I have seen other works from you and they are really good, On this one you tried a different style which is a very good thing, and it has worked on parts that are terrific, but the pitty is some others I don't see they are working.
So again hoping to help you with all my respect ;)