I quit at lvl 16, but resumed my game later on and finished it. Was a bit surprised, but quite content. Now I don't need to play it anymore
I intended to make some Jomon stuff, but I will probably not be able to restrain myself, so it will cover all eras and to some extent TC as well. Ox-heads and horse-faces have a chinese heritage, and are probably more common in chinese myth and stories than in japanese dito.
The new horse-face will probably make me do another celestial soldier of less demonic appearance, since they are currently similar in looks and the horse-face is a guardian of hell rather than a celestial being.