I like V1. The Knight looks like grafitti almost and ties the actual theme together. With the realistic-looking knight, it's kinda hard to actually think of it as being next to diamond-plate steel with Police CAUTION tape next to it.
Real nice sig tho ace. Keep it up. (Team Jackal GFx Might soon be gettting another member)
IMO, the sig would be Mind-Bogglingly awesome if you would take the render in v1 and lower the opacity of it so that the diamond-plating shows through.