Thank you so much for your lovely comments!
We're happy you liked the level designs, we put as much effort as we felt we could during the jam to favour quality over quantity - hence the limited amount of levels.
It's very interesting and informative to hear different player experiences, quite a few people found the levels challenging, a few less (like you) found them quite easy, and a lot of people do not mention difficulty much at all, which I'm taking to mean it wasn't too much of an issue for them because they found it was well balanced.
It'll be interesting moving forward how we balance that better, because yes we definitely want to add more levels, but also more challenging ones, so I guess we'll need to make sure we help those less comfortable with platformers to ease in the difficulty more progressively.
Glad you found the game (or at least the artwork) fits the theme, we've mostly heard the opposite so far! :D