Your animations are so amazing! I love the pixelized grass and tree, and the way you made the rain: it all looks like a good retro videogame. The tone change to pink when the rain stops is lovely, as well.
Perhaps the thing that has surprised me is the abrupt transition from the end of the animation and back to the rain. It's very sudden. But I find that I quite like it. Ever heard of creepypastas? It reminds me of them, for some reason. Disconcerting and kind of creepy, particularly when compared to the rainbow. Like the jar break somehow triggered the rain.
It's all very interesting, really, both in concept and technique. I love it.
Good luck in the contest! (not that you'll need it )