It is a truly remarkable game! A very nice and relaxing atmosphere—I love it. The music and visuals are also good and complement one another, making a balanced and beautiful picture.
I confess I didn’t understand what to do without a hint, but then it went smoothly. I’m playing the second level now. I just wanted to write that “moving” the puzzle doesn’t quite work for me. I can rotate it with left-click+dragging, but not “move left/right,” as it says in the game description. Is this expected? I play in a browser.