Nice and unique piece!
Hm... it's a recent tendency that many audio artist submit a solo piano piece to AP but the most of them are uploading sad, relaxing, gentle or some epic pieces.
But this is some way other and I haven't heard this kind of emotion in music these days: your music is full of energy, happiness and funnyness. I think this is missing from todays music - and you catched this emotion really well. I could easily imagine a silly, funny but nice girl to these chrods. Really good job!
So the melody and the structure of the song was absolutely ok. But I think you should be more aware of the volume level. Some parts were too loud - this makes a distortion in the sound and reduces it's enjoyability.
But besides this it's a great song. There should be more like this I think. It gives energy and happiness the one who hears it. Congratulation for this one. Keep them coming!