Titan Marine in Stormtrooper Colors

I got a bit side tracked from my 15mm orc warband for the moment.  I'm still working on them and will post pictures sometime soon.  I wanted to come up with a paint scheme for my 15mm Titan Marines by Rebel Minis,  that I bought at Games Plus last week.  I decided not to go the camouflage route and instead I used similar markings that the Stormtroopers (specifically Sandtroopers) had in Episode IV.  I think it fits really well, especially the orange shoulder pad.  I'm thinking about having this as a squad marking, and I'll more than likely use different colors for each squad.  I still need to come up with officer markings, possibly grey helmets for officers and maybe some emblem or marking or something.