Very fun game, I love a good climbing game. I would remove the music by default on the climbing stage, just the wind and the mountain is perfect for this type of games, so I muted the music and it was perfect. I would add some short brief music based on events, also maybe to make aware the player of something happening. As a person with a fear of heights, this was basically a horror game (although the art style helped :)), but I really enjoyed it.
Solid game for the jam.