Howdy,
Hard to say based on just one picture. I immediately notice that the cover strips of the biceps taper quite diagonally at the front. They usually protrude about 1 - 2 mm and the corners are only slightly beveled. And: swap gloves for rubber gloves.
On the chest plate I would make the coverstripe a little smaller and insert the screws that simulate an original strapping.
I like the weathering.
I'm looking forward to more pictures. So he makes a good impression.