I tried to reply to this but I kept getting an error, and the comment was lost. I think Steampeak dropped my login.

Anyway, here are two images I painted using your tree as a guide.

Personally, I think I would be fun to train this tree into a cascade tree, removing a large branch every year or two. Eventually it would resemble a waterfall cascading down multiple rock steps, and making for an ancient looking tree. In the upward style, I would let multiple trunks grow, and train the lateral branches to form a traditional cloud shaped dome, and perhaps some lower tiered branches too to look like a delicate downward stream.