I cannot make these kind of movements with the keyboard. I am sorry. Will have to wait with the rating until someone uploads a playthrough video.
If you added gamepad support in a post-jam version, I would definitely try again.
I think you were going for a Celeste-like platforming. I get that. And I think you are doing a good job at it. It's just I cannot possibly do that with a keyboard.
I like the background music very much. It gives the game an eerie vibe.