Whoa. Sorry to hear that. Please, don't rush yourself if you're injured. (I can add more to this post or make another once you add more.)

As for this, I didn't think of it as Nation-ish. It takes place in a nation, but it isn't on the nation level. It would involve the actions of a (relatively) few individuals, not whole armies. If military commanders are involved, it wouldn't be in a war. This is a time of peace after all. Although I suppose this RP has a few elements of arena, nation, and the normal 1x1 in it. Ultimately, it would be about characters fitting into the setting, not a large-scale story or one totally centered around combat. So, yes, our created worlds (or a version of them) would be good.

I suppose I could play the female gladiator, although I'm not a woman myself. While I have RP'd females before, I mostly RP males. Everything I have about these orcs so far has already been written down in this thread, so you know as much as I do in this case. They don't follow Tolkien or other media which features Orcs (like the Elder Scrolls or Warcraft.) I would probably do fine either way, so you can decide who plays who of those two.