Deus ex machina

This imperial knight (model by GW) is painted for my spacewolves. This is the second of my bigger minnis that is done mainly by airbrush. The weaponarm is changable into the autokannon with magnets. As it is not a real spacewolfvehicle but more a kind of allied warmachine i have chosen to give him a little different painting than the rest of my army. At last i think it looks similar enough to fit with the rest and look good on the battlefield. What do you think?