Originally I set out to make Buck in the 6inch style of Halo figures. I guess it was late and I wasn't really paying too much attention while sculpting, but he came out looking more like Noble Six from Halo Reach... so I rolled with it.

Helmet has been resculpted with added details and bulk. (Super Sculpey)
Under suit is now black and gray
Armor was painted gray, black washed and drybrushed with silver. All Citadel paint.

I'll post more/better pics if there is interest. Thanks for looking!