It stands out as a game, it's a creative idea, addictive in its simplicity.
I don't really believe that the visuals were too cluttered, I like the chaos going on. I think that it's not about clutter but about the palette: important stuff should contrast more and particles should be a bit more in the background.
Anyway, since the mechanics are not too complex I think you can afford a bit of chaos :D
Good job, very fun, I hope you are very proud of it :)