Sweet patience. I love it :3
I'm agreeing with Manupix; the tree trunk looks a little weird. I do like the flying debris and subtle animation.
Nicely done =)
I don't get/like the spawning of lone pixels: bugs? dirt?
The short vertical stretch of tree trunk bothers me too.
It`s truly nice. Although I think that if the tree`s branches were moving too it would made better contrast with the static rocks.
Awesome colors and wonderful clusters make this animation beautiful