Awesome first jam entry! The art was nice, and the gameplay mechanic was sweet! I liked the background tree element and the tile set especially! The game has a really steep difficulty / information spike on this level:
Up until that point, I had assumed that corpses were affected by gravity, as it doesn't make a whole lot of sense for them to float. I think it is fine to have that as a mechanic, but you need to introduce it in an easier level with less moving parts. Also I died countless times by holding right then dying, causing me to walk off the platform and die again.
Overall good game, hope you keep at it!