I guess the moust important parts of jams is learning and making something that work enough to be fun, cool or interesting to build upon, not necesaraly perfect in any way. I am alsow almoust completely new to level design and my aproach is prety much just tring out random ideeas undit it feels right and tweking along the way, alos i am also no artist so i just try to draw simple stuff just by preaty much tring a bunch of ways to mix the pixels untill it looks passable and from what i know the moust importan parts of art in games is moustly about the artsyle beeing cosnsistent and readable not necesaraly beautifull. I alsow ending up sushing some of stuff in my game even if i had a lot of time to work on it and went for something i knew i could vauguely do. I like thinking about games and giving feedback and i alsow had fun playing your game!