The level design could do some work. Take camera angles into consideration and try to leave more cues on where player is supposed to go next or use more fixed camera in certain jumps.
The presentation, however is where the game shines the most. I love the beautiful art and environment. I can tell the level design is trying to push more into the immersion part so the platforms are minimalized into small bits, but I do think level design should go more hand in hand with the environment itself instead of shying down on it.
Keep up the good work!