+1-ing this also. Another thing that I would suggest is possibly having some sharper edges. In the concept, it looks like some of the edges aren't as soft or rounded as some that you have in your model. One thing that is throwing me off slightly is that some of the yellow stripe decals are missing, so the body of the gun…
I'll +1 this as well. I think it's a really cool concept and as far as base shapes and silhouette goes your heading in a good direction, my only problems, other than what was already posted about the proportions is your bevels, which you have on almost everything seem way to large when compared to the concept, from a first…