It's probably just the angle of the pic, but your right shoulder brigde on the chest piece looks shorter than the other.
Also, if you get the back piece in their, you can see if the ab and chest need to come up, the kidney go down, or a bit of both. Although gaps in the back won't matter as much since you aren't going for centurion.
But overall, nice work! Can't wait to see it all come together!