This is a really small suggestion, but I think it would add a lot of atmosphere to the game. I propose that bounty skulls should grumble, complain, and shout at their captors as they return them to the outpost. Maybe even shake a little bit in the players' hands as if they are attempting to wriggle free.
I think it would be additionally hilarious if the bounty skulls start to get more apologetic and scared as you're about to turn them in, knowing what lies in store for them if "they" (Order of Souls) get a hold of them.
They can also talk about things like, their life back in the day, their exploits, crew, how dangerous they were, etc.
