first one is really good. I have a question about the 2ed one tho... Is that supposed to be muzzle flash coming out his gun? I think that with a little editing you could make it look a bit more real, but really nice sig anyway
top one is great real nice work, the effects and colours work, the 2nd one is a bit bright i think and thr lightinbg is way to strong maybe reduce it a lil.