I tried to do a bit of dirtying up on him. I'll take the advice on weathering him a bit, some paint chips and rust around some of the edges of his amor would make him look tougher.
I'm only sad now cuz after looking over the leaked codex there isn't an option for a warboss with a custom megablasta which is what I was shooting for on the gun. Oh well, that's what I get for building befor the new dex hits. Just kinda figured that the boss could have whatever gun he wanted, he is the boss after all and he gets what he wants...