Those two look great. Hard to say which colors work best. Big problem though, that blotch of color at the left top of each tag messes up the tag by drawing your attention more to it than the focal point.
I still think its pretty subtle. =/ i wanted it to be like an explosion in the background of a battlefield or something. because Master Chief is just that badass xD
Well it mostly atracts the attention in the orange version, in the blue one it blends better into the sig. However, it does look more like an explosion in the orange version.