Wiggly Seasons

(click an image to see it animated)
A tree in some grass, with red circles in it and some more red circles on the ground. Are they apples? Red leaves? Who can say?
The same tree, but it's snowy and dark and there's no leaves on the tree. However, there's a snowman, and a single pink flower is blooming.
The same tree again, but this time it has pink circles, presumably flowers. There are also more flowers growing on the ground, and a rainbow in the sky. It's raining.
The same scene again, but this time everything is brown, and there's an orange sun high in the sky.

I found Wigglypaint by Internet Janitor and decided to make something with it. All of these use preset palettes. (Make sure you enable animation (above) for the full effect.)