For more tutorials for the Adjutant Cosplay see these: Head Piece, Chest/back armor and other parts.
Shoulders Again this is worbla wrapped around a cardboard base, and I shaped the top over an easter egg I had laying around.
For the circular shape I used a hair product box and shaped the worbla over it.
Added a few LED
The shoulders are attached to the chest armor with this Velcro solution and D-rings, keeping both the chest, back and arms together.
This piece actually holds the chest and back armor together over the shoulders as well, so the shoulder armor won't slide down because it is then attached to the upper body armor.