I believe we need more pics of your helmet, to show off any decals and or hand painted details.
You are looking good however. Better than most! But there's always room for improvement. You blaster is looking a bit funky as well, but is nice for a scratch build, and better than a hasbro!
While I'm already nit-picking your drop boxes could come up a little, and attach with elastic instead of webbing. Not that those are required, but in the spirit of centurion.