Answer 1

Nice looks, no visually confusing background elements (an important issue for first-timers), hard but not too hard.

A few problems:
1.  Your second platform punishes slope boosting.  :-(
2.  The first checkpoint doesn't trigger if you slide across the ceiling.
3.  Way too much dust.  Dust in corners you can't even get into.
4.  The "easier than it looks" part ends up feeling very random, like the player is forced into a pachinko machine.
5.  Last platform flows kinda poorly.  Not sure how it's supposed to be done, and again too much dust.

Still fun overall, and thanks for submitting. :D

Answer 2

I found the easier than it looks bit to be easy to complete if you just hold left and up