Devastator Sergeant

A real simple post this time.  I had enough spare missile launchers from my bags of salvaged bits to craft a Devastator squad for my Storm Dragons Space Marines.  However, I didn't really have the bits to represent a modern Devastator Sergeant with signum.  I figured using some fancy Mk. III armor and some doodads to "tech up" his armor would suffice.  Not sure what to do about converting a cherub, but I'll figure that out eventually.

Devastating.

I gave him a storm bolter from an old plastic 2nd edition Space Hulk terminator that has evolved in to a Chaos Space Marine Obliterator so that he can contribute some meaningful but affordable weight of fire to the squad.  Eventually I'll craft a few additional bolter marines so that I have some mooks to soak up a couple ablative wounds.  What?  Isn't that how you Imperials do things?

Does he look sufficiently tech-y enough?  Let me know what you think.