I really like this game! It is a simple (though a bit unoriginal) idea that is explored a lot (maybe you could make a post jam version with more levels?) and the graphics and sounds are amazing and really relaxing.
Some of the puzzles are a bit straightforward but most catch you off guard. Level 3 really led me astray.
Anyways, only thing I have to say is that the rewind was a bit weird. It recorded the movement only and wouldn't repeat it perfectly. It might be a conscious choice but it does feel a bit weird.
Oh, and also the rewind effect looks really good but maybe it's a bit over the top. Maybe you could reduce the alpha of the rectangles a bit? I don't know, maybe I am wrong about this.
So yeah, great game! Hope you make a post jam version!