Thanks for testing the new levels!
From what I have seen the witch fairy's ability seems to not be intuitive for a lot of players, sometimes including myself. I designed puzzles around making the witch fairy stuck somewhere, but people find lines of play where you can get her out of that place.
Bridge 2 is the most complicated level of the bunch, followed by the bonus stage but that could be because it had some design issues. Bridge 3 some people have told me it is incredibly easy, maybe because it is right after bridge 2.