This art is unbelievably charming, and the ideas from your brainstorming look like the makings of a really well-themed game, which IMO is essential to make a platformer interesting. Keep up the good work.
Thanks! I think the theme is very open-ended so there are a lot of possibilities for where this project can go. I completely agree though about the importance of a theme. if I go a little too crazy with ideas and the theme starts to break down, that could end up hurting the project in the end.