I decided the beastman would carry a drum: This would signal him banging the "War drum" e.g. he brings strife to the forest. At the same time the other dancers, even Orion, would be dancing to his beat symbolizing that they would not be there if he wasn't. He's the enemy, but he's still in command of everyone.
To make the beastman dancer more gruesome from the rest, I made his mask be the skull af an actual slain beastman. Also he has a beastman mane, heavily inspired from the bison headgear of indian rituals. First I thought of adding a few feathers to the headgear, but decided against it in the end as I thought it unnecessay
Photos by Fruzsi Gaal