Great entry, as always! The music is very calming, and the overall vibe of it combined with the visuals is very nice. I love the attention to detail in the title screen with the rain and the bouncing title. Also, was Sugar, Sugar an inspiration for this? This reminded me a lot of that and brought back some good memories. The progress bar and the limit to the number of lines are both great additions. Also, the physics on the water look and work pretty well.
I did encounter a small bug with the reset button. Sometimes clicking it would cause the game to draw a long straight line pointing toward the button, and other times it wouldn’t reset the level, so I had to restart the game. Interestingly, after restarting the game a few times, the issue seemed to resolve itself, so I'm not sure what caused it in the first place.
But other than that, this was an enjoyable game. Like I said before, the music creates a very calming atmosphere, and the SFX are also very nice. Level 9 felt like a bit of a jump in difficulty, and I wasn’t able to solve it, but the rotating platform seems like a really interesting mechanic. I would love to see it utilized more, along with maybe some other mechanics. But I understand that coding water physics can be a bit tricky, so good job with that!