I like the look, but maybe the kbin color, the pink-purple gradient, should be on the bird rather than the background. I think that the pink-purple is probably part of the recognizable kbin "brand". I remember many people making images with Snoo on Reddit -- where his orange eyes were kind of a recognizable characteristic -- and so having the recognizable characteristics on the mascot itself might be helpful, as I would imagine that if people do that with the K-Bird, the pink-purple gradient might get dropped if it isn't part of the mascot itself.
Also, aside from user creations, many articles about Twitter especially and Reddit to a lesser degree use the logo in artwork above the article to symbolize the service, so having an image that is easy to make recognizable derived creations from might help artists at publications.
EDIT: I don't really use Twitter, so I'm not familiar with their branding, but for Twitter, it looks like they use both a blue-on-white and a white-on-blue form, the latter of which requires including some background, to deal with that. E.g.:
https://www.freepik.com/free-vector/clean-set-social-media-logos2395697.htm#query=twitter%20logo&position=12&fromview=keyword&track=ais
https://www.freepik.com/free-vector/14-twitter-tweet-social-media-icon-pack36361218.htm#query=twitter%20logo&position=14&fromview=keyword&track=ais
EDIT2: Oh, one other thought. Are the white shapes coming from the K-Bird intended to represent chirping? If so, maybe shift them a bit towards his beak? In anime, it's something of a convention to use sweat drops coming off someone's head to show that they're nervous, and unless the intent is to make the K-Bird look nervous, it might be misinterpreted as that.
Looking at a Google Images search of cartoon chirping birds, they mostly have the visual stuff indicating that they're chirping coming from further down:
https://www.google.com/search?q=cartoon+chirping+bird&tbm=isch
EDIT3: Also, while I realize that the colors are pre-existing elements and you weren't the one who chose them, I also ran it through a colorblindness simulator, and the gradient remains easily-visible for everyone except people with tritanopia, which is pretty rare, so I think that colorblind people should generally be able to get the full effect of the image as well, which is good.