Talking about "resort to 3d render"...
Unfortunantly, I could not handle pixel art for a few visual aspects of the game, so instead of hand drawing and pixeling, I had to 3d render and pixel it.
The very first one were the tree´s leaves. It would take a monstrous amount of time to hand draw them and it has to be done twice since they shake over the winds.
The animation would also be of the rotating style and with a very small angle, again, rotating small angles on pixel art of low res is an herculian labour.
The idea then, was to draw a couple pixel leaves kind of like the way the avocado one´s are, generate about 500 instances(clones) with a controlled random rotation and size. Then, on the next frame, slightly change its angle threshold.
It worked wonders and the amount of work after the render was quite minimum.
Here is the 3d project and the final output (after that final retouch).