To me, so long as it's a "uniform" that follows the general guidelines of the one that's provided for you then that's fine by me. Heh, obviously because I modified mine, but still kept it along the lines of a uniform. It's just an avatar so it's really not all that big of a deal.
Although, pictures of what their character looks like in non school clothes isn't allowed. Whomever I've seen so far that has those normal pictures instead of the avatar I've asked to change.
But yeah, basically.. Avatars must be in some form of a school uniform. I'm not going to enforce it so strongly unless a student is wearing something that looks nothing like a uniform. THOUGH, that doesn't mean Zack wont because he's main so whatever he says goes. I wont ask people to change to what we provided, but he may.