If you'll take a little bit of constructive criticism... the weathering on the helmet looks awesome. However the weathering on the armor looks a little too uniform all over. You have alot of edges with no weathering at all, and alot of weathering in places where there really shouldn't be much, i.e. flat surfaces. The dents look GREAT! I'd definitely keep those. It's the scratch/flaking in the center of the armor that I'm talking about, as well as the shoulder bells and gauntlets. With the amount of weathering that you've got, all of the edges should be banged up pretty bad.
Just something to think about, man. Please don't take it personally, 'cause I love the work you've put into this.