Don't know about the colours - it look more like a Dark Angels Grand Master than a Grey Knight to me. Never the less nice painted. I have a question regarding the conversion that has gone down here, was it easy to replace Stern's Nemesis Froce Sword with a " " Halbared?
I'm not sure why the legs aren't the same colors as the rest of the armor, but he looks pretty good anyway. The black is cleanly done and the cloak looks pretty smooth. Solid work :)