One thing that bothered me in the WIP stages and still does now, and I suppose this would be directed towards Shonen, is "unthaw". I know it's a small thing and I'm being anal, but I cringe a little every time I hear it.
Aside from that, as has been said, the vocals aren't perfect, but the thing is, that also lends a certain human quality to the song and shows that you guys actually had fun making the mix. Chances are, if vocals are perfect, they were done in many takes, and were, as such, not any fun to do whatsoever. For an upbeat, kinda "poppy" song like this, it's good to know the people making it enjoyed themselves.
Oh, and as has been said, if you were being serious pixie, chill out a little. I understand why you'd get upset, but that's no reason to punish the large part of the community, the ones that offer constructive criticisms actually based on something, and those that ENJOY your music.