I love the watercolors, as everyone is saying it's a super unique feel. The story is a nice concise loop and the aesthetic supports the story!
One thought though if you continue with this aesthetic in a larger project, you may want to consider adding a vector outline around the sprites and platforms to help separate them from the background make them easier to see (especially for a platformer).
But man, great work, it's huge to sprite a game jam with traditional media!