I think you did a really good job of creating a peaceful and calm mood for this game, especially with the spinning of the rock and the sound of the rock touching the water. The way the rock jumps and fall into the water is really satisfying to watch and play with! As for critique, I think maybe you can give more indication about how high the rock is above water. I feel like most of the time I am just watching the timer and press the button. Maybe adding a shadow of the rock and let it get bigger when the rock get closer to the water or add a flying sound and change the sound effect as the rock falls can draw the player's attention more to the whole picture of the game rather than just looking at the timer. But overall I think this is still very well made and I like this game a lot!