I trimmed away some of the material from the cuirass to give my arms greater mobility.

Test fit... Alexander seems to approve.

The problem I'm experiencing with the legs is that the PCV brace that goes up the back of each leg is vertical, but my stance is wide so my calf muscles lay against them and it's pretty uncomfortable. Going to have to do some brainstorming to decide how to deal with that.
I added a hinge to the arms made from simple lengths of webbing. I normally don't like using the foam as structure, but the arms won't be carrying any weight so this should work okay.

Then added the elbow guard.

I just glued it to the upper arm plate.

I also added a vent to the right forearm, to match some of my Space Marine minis.

And added plastic canvas to the inside.

Here are the completed arms.

I also added some padding in the helmet to make it fit better.
