Would you be interested in creating a version of a character I made called Symphony?
He's an okotan of the water tribe, though slightly different from the rest.
Here's an artwork I did of him.
and here's a concept I drew for Symphony's villager mask. It's essentially just sharper and has two extra "horns", other than that it would be the same.
Here's a written description of him from OA.
Blue, rusted black, with pieces of his body falling off. His crimson armor creates an almost chilling sight.
here's a quote of the original post for him.