I liked this game. Soft music. Intersting idea. (although here you have made a game exactly on the topic, I would like to add interest to this).
Another question about graphics. Raster graphics look terrible. The easiest thing to do is pixel graphics (I used pixel graphics in my game, although I drew in pixels for the first time).
There is also a bug when all the circles are combined into one circle and it is impossible to separate them. But the honor of saying 4 day is too much for such a game. Everything comes with time. I expect good games from you.
I will be glad if you rate my game.
