A interesting enough platformer game, I liked the mechanic to float and hold it out for extended periods of time. However, the hitboxes on the barrels and water is pretty unfair sometimes, because the hitbox for deaths seems to be a bit too big (aka clear over the object, but you die because of invisible boxes). I did also like how the gameplay sped up over the course of the level, I think that added a fun challenge.
Good stuff, and I wish you well going forward!