you are mostly right! the first main stage is inspired by celeste & cave story level design, whereas the second stage is more IWBTG(+ fangames)-inspired and the secret (mostly broken) stage isn't really inspired by anything, i just kinda did it
Viewing post in lunar outcry (raylib gamejam edition) jam comments
Nice levels, I enjoyed them a lot! But I agree that platformers easily become too hard for the general player (some Celeste/Limbo screens and I Wanna fangames are notoriously frustrating). Difficulty options or tweaks to help the delicate designs speak to a wider audience will be a fine embellishment!