Made a few cosmetic adjustments. Went with bronze for the Warrant Officer insigniaand tried to make the metal appear shiny. And tweaked the CPOs insignia too.
Damn, that looks like the big brother of the bus I drew. Wish I'd seen that earlier, I could have just modified that one. Although the scouring-for-references-in-the-internet-for-hours was a pain in the bumm, it was fun drawing it.