First of all, that’s a very cute game! The art style is super cool and very calming. The controls are a bit frustrating in my opinion. I would advise making the movement a bit faster and the jump a bit more powerful.
I read your explanation about how you fit the theme. While I don’t think it fits very well, it’s not really a problem imo.
Congrats for your entry and your first game! Keep it up :)