The biceps are riding a bit too high, try to get them closer to your elbows. Also, the belt seems to be flaring a lot, you might want to try to form it better to yourself.
As for the helmet, I know FX buckets aren't approved anymore and I think I heard somewhere recently that AM buckets aren't anymore either, especially considering there are better alternatives for people with large heads. My GML doesn't approve AM/FX buckets at all anymore so even if the legion does allow the AM I couldn't use it.