Hello,
I liked the most the Gift rain mode. The gameplay is fast and it is clear what and where to deliver and the timing of packages is well-balanced. I really enjoyed it!
I did not enjoy the other two modes as much. As the whole map is not visible, you don't know, where to deliver packages, or even where are some packages. Also, the time to deliver is quite short. I think, there are two different solutions. In one, the player doesn't have to remember anything. In this case, show the player directions to packages and to receivers (e.g. arrows on the screen borders). Another option is to not show the directions. In this case, the player must have enough time to memorize (ideally one color at a time) the locations of animals.