Nice work overall, just a couple of things to really compliment your build, your bottom ear screws look a little high on the sides, but may be ok for the DL's.
You could paint the rims of your mic tips white
A few of your black lines are a little wobbly, a good tip is go over with a permanent marker to help straighten them
Knee ammo strip could be a little higher at front
You could also trim the curve section out of the top angle of the sniper plate so its a little straighter.
You could also drop your forearms a little, there is a bit of a gap there at the gloves, will allow a little more movement at the elbows.
Good luck with approval