Hm, the main issue I can see with the character is that he is rather flat, I'm guessing you box modeled him? The flatness can easily be solved by making the model slightly more cylindrical with the edge loops, rotating and shaping them to follow along the curve of the body. Because as of now I the edge loops you have are basically completely flat and as of such aren't very organic so to say. Just rotating them would make quite a difference and shaping them a bit as well would just add to that.
Here's an example I made or whatever, not the best thing in the world but hey, I'm busy hah.
Notice how the edge loops bend and shape around the contours of the body and such. (Obviously I probably went a little overkill with the detail on this one but I can't be bothered to think right now, it's sort of late hehe)
About the texture, I do like it quite a bit, it has a very nice tone to it, but did you use photographs for the texture? It generally seems to enhance the flatness of a model and just looks strange seeing as all the different parts usually have different light sources. But you've got something rather nice going on.
I do really like the character, definitely work more on this guy, he's cool.
Alucard94, the member of the future of the past.
