You know, it really looks like some desert trooper with worn, brown shoulder pauldron and worn-looking markings on the armour. In a cool way, too.
The paint/sharpie does look pretty worn. It has a cool look of its own, but you might also want to make the markings stronger and more solid.
Photographing so that the light doesn't come from behind the fig and the fig is hence more visible might not be a bad idea, either.