pretty nice work man!
i like the metallic effect!

Oh, thanks.. old set btw, :P.

I really like the hard gradients.

not to be a douche, but something doesnt look right...

transparency?

also, head design doesnt mesh well with the body. i'm struggling to see matching elements apart from color that ties the head to the body

It looks extremely random to me.

I'm not a big fan of those "High contrast metallic" thingies actually..
I do like the color scheme :B

6/10
i don't like this style

It's very odd, the metalic features lines are very irregular, smoothing them out would make it flow better.
The way you shaded the visor is very different from the rest of the set, perhaps making it metalic also would help?
I feel there should either be more black or more grey in the background, it's kind of random throughout the whole set.
This isn't your best work and I think you can do a lot better.
7/10.
The colour scheme is nice and the whole idea is pretty cool.