This was a really calm, tranquil, and generally engaging puzzle game! There was something very satisfying about just watching the patterns spin and realign, until finding the right angles and lining things up. It quickly got more and more complex - but at no point did it feel stressful. You eased the player into the more complex puzzles really well, introducing more unique aspects very organically, making for a very fair and fun experience.
The colour choices on some of the kaleido-puzzles might be a bit too samey for some, and I can potentially see some colourblind people struggling to engage with this. But the actual puzzles themselves were fun and engaging!
I quickly ended up lost playing this - though the music looped a bit weirdly, the sound design was really fitting. At times it felt like the slides spun too slowly, so maybe having them accelerate the longer you hold the arrow? On the other hand - it flowed really well, with that slow pace, so that might break that zen feeling it channelled.
I can see this doing numbers as a mobile puzzle game.