Right away, I took a serious liking to the style that this game has! I liked how colorful and easy to read it was.
The style also worked incredibly well for the gameplay and writing. Growing apple trees made for a fun gimmick to add onto the bullet hell style. The only real issue that I had was the potential to accidentally skip dialogues due to the way that the controls are laid out. Right-clicking interacts with the trees already, but there may be other keys that would work without overlapping other controls (Q, perhaps?).
The music also didn't overstay its welcome. I think that I noticed some subtle dynamic music as well, especially with the boss music near the end. It's always a nice detail when I notice that!
Lastly, I enjoy seeing developer notes and art galleries included in games. It's a practice that I haven't seen often recently, but it helps me appreciate how much love was put into the game. The apparent OC designs were fun to look at as well, and all of the characters fit flawlessly into Gensokyo. (Apple was one of my favorites, but I loved them all!)
Overall, I enjoyed this game a lot! I'm glad that you were able to finish it for the game jam, so thank you for taking so much time to make it! ^.^