Thanks! I originally had very lofty ideas for this game - I wanted to create 16 puzzles, with a poem to go along with the puzzles, and make the whole game structured like a book with paper-flipping scene animations, a voiceover reading each line of the poem, and so on, but didn't have time for all of that extra stuff. So what ended up happening is that some of the level ideas got stretched over a few puzzles to try to hit that 16-puzzle limit, creating a bit of repetition. I think the repetition is reduced considerably in the later levels, after the "freezing" mechanic is introduced in Level 9.