The main mechanic could be interesting if exploited a bit more, or if it give player more freedom on how to use it. Several time I feel like getting a new to just help me go through the next obstacle which feel a bit non-immersive to the world you're trying to build. In that matter, maybe consider adding some non essential stuff to see when using your power. Stuff which could add to your lore, increase the exploration satisfaction.
Last comment, what is wrong with the clouds in the first level !? they are going crazy fast, at a point where it's a bit sickening. Maybe considering slowing them down, or moving only when player move using parallax effect.
Congrats for your work nevertheless :D