I think you aught to just delete any disputed entry, rather than argue about it. Then, you both redo it and submit your own redo with the same audio. People do it with Game grumps every day. AS for the improvements, Psy's improvements include a better looking shoulder. The finished product included a hood that looks like a hood, and also only includes one set of eyebrows. Both of the others have 2 sets. I would say the final one looks best, even though it doesn't have a shoulder. If you both redo your own version, you can then compare who's gets a better score. If he does worse and you do better, you'll squash him accordingly. If he squashes you, oh well, accept it and move on. If you both get squished, well, you can kiss and be friends! :D ...or not. :)
LazyBucks
Looking good man