Hi Andrew and welcome to FISD.
You and your friends did a great work with your ATA kit.
Overall you look good for basic approval, I don't see something that could stop you brother. for a better look I would suggest to make a little adjustment to your Shoulder Bells and AB belt.
1-Left Shoulder Bell, as you can see bellow, your right one looks perfect, the left one would need a strapping adjustment (shorten) to close the gap between the Chest Plate and Shoulde bell. additional, you could trim the return edge of the shoulder bells (more accurate) to get the closer.
Some reference images
Another easy fix that can give you a better looking Trooper is about your ABS Ab belt, The ends of the belt are very straight and you could apply a hot water bath or (carefully) use a heat gun to increase the curvature.
Reference Images
In case you want to go for higher levels (EIB and Centurion) there are some twerks that you would need to do.
Good luck and looking forward for your TK ID