Congratulations for 3rd place! I think your game is awesome and would love to see more of it. I think more islands and friends would be great! I would recommend at least tweaking the current story. In the kite segment, I didn't see the kite for a while, and was confused. Part of the confusion was early access to the gate. I fell down the hole, and leaving the gate area lead right in front of the shop. I could not get back to it, and it only made sense after I finally found the kite.
As for the continuation of the story, let me give some ideas. They are just ideas and I wouldn't care if they were not included. I think a villain would enhance the story. I wouldn't want a evil villain (because of the heartwarming and friendly nature of the game), but maybe a friend with misguided intentions. Maybe for example, someone doing stuff "for research".
Anyways, I just wanted to give some ideas to maybe help with the continuation of this game. Even if the game doesn't grow, I still think this is a great short story. I have already fully beaten it twice. Crown and everything. I love how ridiculous movement is with maxed out stats. Thank you for such a great game!