Arranged for solo piano with a fun atmosphere.
I would be ad-libbing with the right-hand phrase for this time, I purposely chose an accompaniment shape for the left hand centered on 4-minute increments that would make it easier to keep the rhythm.
The notation for the improvisational part was created by transcribing and rearranging the music I actually played while keeping the left-hand score.
As an appendix, I've included a musical score with the right hand section blank, as well as another example of the intro and ending, so that you can try your hand at improvising phrases yourself.