For the open source category, you'll need to have a README file and License file.
Cute graphics (especially the loading icon/chibi). SUPER addictive. I love that you have implemented controls on the side for music, sound, master volumes. Lovely, chill, relaxed vibes, and fits nicely with the theme. You've done a great job on animations too (like the red when you have a tile in the wrong spot, and green for all good). Nice job.