Last night, I carried on with the backpack, re-using the Snow troopers existing backpack and sculpting it into the Sith Troopers using Green Stuff. Once its dry, I will use my rotary tool to sand it down, neaten it up and then paint it.
The trooper himself, well as you can see I set to work painting this bad boy up, need to finish his helmet off, add another layer of red, adding in the finishing details to his armour then followed by adding the Sith insignia to his helmet and shoulders.