I'm only saying this because you asked what I think:
As a designer (architect), I'm not crazy about hos the design doesn't relate to the lines and massing of the vehicle. I'd suggest gazing at your rig for a while and decide what of its natural lines and massing suggests to you for a paint scheme. Of course the reverse of this is to ignore the "canvas" that the BRAT provides you and do something totally irrelevent to the car. This would be similar the city busses getting shrink-wrapped in plastic advertising. And even with those, they have to acknowledge the shape and space that the vehicle provides, at least in terms of boundaries.
Of course, I could be wrong.