If you were going for a simple design you nailed it. I like the segmented look, the only thing is it's not all segmented. The arm mainly: It looks like you were going for a segmented look but its not quite there. The forearm, the part that connects to the glove has the right look, but the part connected to the shoulder and the mid section don't have the same look to them. I think it would look cool if they were three distinct segments. The body also, since you have some parts segmented it makes the rest look off. I'm sure you don't want to have two spheres for a body, but if you could shape it more to get the same look that would look great. My comments may be a little biased towards the segmented look, but I really like it. I don't know if your familar with Vectorman.
If you had to fix one thing I'd say fix the arms. Give them the full on segmented look, then you could probably overlook the body. It looks great, and i'm sure with the textures added it will look even better.