I really like what you did with the piano. And the drums add onto the chaotic vibe the melody goes for, although I'd change some parts like around 0:25 it sounds quite off with the claps, I think a more focused pattern, with a much bigger attention on the onbeats would fit better. Also regarding the drums, I think you went too much into the wet reverb with this one. There's no real division into melodies and choruses, which also is an interesting choice. You don't quite know what to expect, and I quite like that in a song like this. The chords also are very fun and jazzy. I think that the change to 4/4 at the end was a good idea, though maybe executed a bit too early. Overall I like it, though I'd still change some things.