A simple but very interesting game! It's cool to see the planet come to life with all the little pops moving around. The main menu UI is beautiful.
I also really loved how the fields keep the same texture but change height and color depending on the growth stage. It's a really smart trick.
Maybe instead of creating fields at random locations, it would be nice to give that control to the player. For example, you could introduce mechanics like: forest + fire = ash ground, then ash + rain = new field, or other combinations.
Overall, it's a chill game and a great submission!