If you ask three different people about how to style the tree you will get four answers, at least. At least one will say it's your tree, which means you choose. You shouldn't do anything before next spring, so get basic education on how to design, prune, wire, repot, etc., and be ready to make your own decisions. Some video or lecture will touch on the scar, what to do, etc. Do a lit of research between now and spring.