Seeing how Griffon wasn't born as a gryphon, there's actually no reason why he'd have a gryphon brother, but whatever.
I've actually been wanting to do a larger, bulkier build gryphon for a while but never had a chance to really explore it more. I was supposed to be designing kitsunes today, but inspiration and motivation aren't mine to control.
So this is Stone, a big hunky lad, older bro to Griffon. He has lesser geomancy abilities, does cave diving, and makes pottery in his spare time.