He has sort of an ARC feel to him, in that, the comics portrayed the ARCs to be brauny and very capable. I like this look, because it really makes them stand out from other clones. The same is true for this custom, as the crash harness around his legs and the kama give him a much wider (not in a bad way) look, than normal clones -- sort of like a heavy trooper. He really looks geared up!
I'd also like to add that the snow in his hair is a good touch; some customs neglect to show environmental weathering, so it's nice to see it every once in a while.