Interesting concept, well-executed, great implementation of the jam theme, and overall very to-the-point.
Not sure what else to say here (although I guess the custom hand cursor thing does seem a little bit scuffed, and adding the ability to close the game by pressing escape or something would be nice too) but yeah good job.
(I would also consider installing WebGL build support for your version of Unity, and building a WebGL build. That’ll allow your game to be playable via browser on your itch.io page, which I find tends to help encourage people to actually try playing one’s games.)