Hey Chris, looking good Scout!
I know that things are run slightly different across the pond but personally i'd get a popper or Two on the top of your bund and attach on the underside of your chest armour to ensure that there is no gap. And get a popper on your shoulder bell, it will stop it sticking up.
Jumpsuit might benefit from being taken in a tad too as it looks baggy.
What do you have in your pouches?
I have my amp in mine and some foam in to help keep the shape (hollowed out for your car keys, wallet, cell, sweets etc).
Minor things though mate ^ just things you will probably get round to doing once you're out there trooping.