To be honest, I like questioning my sanity. I'm pretty well practised at it.
I'm actually intending to use all the different schemes for the different troop types. So, intercessors/tactical for the first (basic) scheme, reivers for the second, assault for the third, heavy for the fourth and sneaky stealth (infiltrators, scouts and the like) for the fifth. I'm more after criticism on the colours used and the overall impression it gives.
They're basically a separatist legion, hiding out in the fringes of known space, watching and stealing what they need from the Imperium when it suits them. Hawk themed, obviously, hence the name. That's also I've also gone for the orange eye lenses for some of the schemes.