Hello! Really enjoyed the new demo! It's been really polished since the original jam demo, the camera now works smoothly and the world is much more open! It's been fun finding all the chests and finding the perfect spots to pass through the rings from! And the level design is just beautiful!
One minor thing that could be a problem for some (I got used to it after a few tries), is the close position of the "pound" key and "dash" keys on the keyboard, where a mistype means pounding all the way down a chasm instead of flying to the needed place. But that's a minor nitpick, and the mushroom quick-travel really negated any potential frustration.
All in all, fantastic second demo, and good luck on your future work on the game!