Completed all three puzzle types, all levels! The concept is interesting: puzzles built around visual perception. The scrolling layer puzzles and the animated gradient puzzles had this moment of my eyes adjusting to see the individual components, almost like those magic eye posters. I once built a game that was an abstract spot-the-difference game, and a sort of similar mechanic applies there: cross your eyes and the differences pop out.
I found the difficulty pretty gentle overall: once I figured out the trick for each puzzle type, the remaining levels went quickly. Harder variants could be interesting, maybe patterns that are closer together in appearance or composites that are harder to decompose. The kaleidoscope puzzles were the most visually intricate but the easiest to solve for me.