I figured Bon's ref was so far out of date it warranted a new one and whipped this up last night.

If you're using his sheet for a piece for me: You don't have to follow any of this super strictly. His blue accent is almost always different to fit scene composition, and his light colors I've always been too lazy to stick to. He does have to have stretched ears and a forked tongue, but you can generally drift a little on everything else.