I really like the art, and general mood you made. The triggers on the traps are well timed too!
Would love to have had some music. The game was very slidy, would rather see more control over my character.
I thought it was strange that the spikes would kill me if I slid ever so slowly sideways towards them, even if they were facing up.
I share this link to anyone new to game design who is into tough platformers. It analyzes Celeste - one of the best challenging platformers out there. You probably know all about it, but just incase here it is: