I still don't know how to solve the first puzzle because I found another (maybe unintended?) bug that got me past it. I know someone else already said this, but the difficult platforming combined with difficult puzzles can be overwhelming. I don't think the platforming, or the puzzles by themselves were too difficult, but together they made things a bit more difficult.
I love the art despite it's simple nature, and for what it's worth the player controller is satisfying to control and I always feel in control which makes the platforming much more welcome.