First of all, congratulations on your level design, it’s amazing! The way you managed to connect the two perspectives of the characters in a simple, intuitive, and achievable manner makes the game very enjoyable to keep playing.
Another strong point is how you introduce everything to the player, especially the dangers, which are VERY CLEARLY presented and make it obvious that any mistake near those areas could result in death.
I really liked your art style, it’s pleasant, and the main characters are super cute. The white background with some highlighted elements was also a great choice, as it keeps the player's attention focused on what’s truly important.
I would have loved to have more control over the jump mechanics. For example, the longer you hold the jump button, the higher the jump goes until it reaches its limit, stopping the ascent if you release the key.
I wish there were some extra levels, but I completely understand the time constraints. I also have a feeling the coins were originally intended to serve some other purpose, right? Either way, if you decide to continue working on this project, I wish you the best of luck! It has a lot of potential.
Congrats on the game, it was genuinely fun to play!