I second that seconding. Make him gritty. As far as Anime goes, that was one of the most down and dirty ones, and this character was mean, and sweaty, and desperate. He looks too clean, more like a toy right now.
On the other hand, if you do decide to keep him this way, at least fix the gradient on his arm guns to be less evenly applied. Right now it looks like cheap flash shading, and it’s the weakest part of the model. If you decide to stick with the simple version, it could work, but I think it could use a bit of tweaking to get it there. Sharpen the highlights, and paint in a few more of the details, particularily on the mechanical bits.
I think if you could push the texturing style more in the direction that qubism did it here with his project with moppius
TEXTURE
RENDER
Note the sharp highlights and sharp lines defining muscles.
It’s a good model, and well worth the extra lovin’, so keep it up!!!