Hi, I tried the game out and for some reason I'm completely unable to draw a circle. Not even a second after I start holding down Left Mouse the bar at the top center of the screen runs out and my line (assuming I even had the time to begin drawing one) dissapears, even in Chill mode. This did happen to me in both the newer and the older versions of the game, though, so it might be an issue on my end.
Also, I've noticed the "Retry level?" menu is very buggy. Pressing Restart or Menu doesn't seem to actually close the level, which leads to the tutorial and the game over screen overlapping with themselves or the main menu respectively, and for some reason the button shows up in the "Change thread" menu as well, where pressing Restart will start the first level while the menu is still visible. And on a related topic, I think there should be a Quit button somewhere in the main menu so it's easier to close the game.
That said, I do think the concept and the artstyle are pretty nice, and from the gifs you posted the gameplay looks interesting without the first glitch. I hope this feedback helps.