basically a hippogriff is adding in another bit to the formula and overcrowding things, and its very difficult to really show off the horse part since that's mostly the overall sorta frame so applying it to a person's not going to work. It'd be overcomplicated and just kind of a worse griffin, which a hippogriff basically is. I guess you can do a centaur thing but that's lame and doesnt match the wings. meanwhile a griffin dude would be badass. perfect bald eagle head and big wings, mane and huge pecs, raw denim and cowboy boots. It just works