I just wish they would have done more than just simply making a "skin" which sounds kinda weird, but lately Riot has been stepping up their game when it comes to their skins, by adding new animations, audio and sound files, lots of new stuff coming with every new skin. So when they DON'T do that it seems kinda lack luster, like they didn't care as much. I know it may sound like being strait up greedy, but this is a real problem when you start to do things so great, that you then set a new standard for everything that comes after it.
Personally, I think this skin could have really benefited from having some new animations and voice over work. Sticking with Vi's theme, you could add new dialogue to her taunts talking about hell, maybe a line something like "I'll pound you strait into the 9th layer of hell!" or something along those lines. I'm a huge fan of Vi, and she's actually the only champ that I own ALL the skins for, but with how Riot's been stepping up their game, this seems like it had a lot of missed opportunities.
And I want a new dance for Vi, her current dance is the only thing I DON'T like about her. Could have given us a new dance. :/