I was impressed by the level design in this, and also by the fact that you made everything yourself during the jam period. I was unable to beat it (tbh I'm not great at platformers), but I enjoyed the challenge. If you keep working on this, I agree with the other commenter that paying some attention to the character controller and jump height could take it to the next level. I also think adding some more detail to the environment in the first area would be nice.
Congratulations on finishing the jam!