*I am a aware this is quite an old project.
I absolutely love the fading of the trees going between the seasons! The background is surprisingly beautiful, even though it is so simple. The art is lovely, and the audio is very well fitting. Well done on the camera movement.
Possible Improvement Areas [Please do not take offense, my goal is to help you improve in game development]: (1) It was impossible to jump upon some of the platforms - Unity Physics... (2) The player should have at least been an emoji/have a face. (3) Replace the invisible walls with like giant trees or something. (4) On main menu, remove quit button and make the play button more visible. The main menu may not even be necessary.
Overall: Outstanding Job & Keep It Up!