Looks neat! Love the birds, but it is still a bit too repeatable even if its slowed down, why not make some kind of stop in the circle. Perhaps make one of the birds fly up and stop and the other dive down, just to give it a playful feeling.
I would also make the waterfalls a bit less sparkling and more thick. Why not add a semi-transparent cloud above the falls.
On the furthest left waterfall, the foam all over it is really good, but it's a bit too flashy. If you stand very far away from a waterfall you can't see individual particles, but just a foam mostly.
Try making the animation more floating, think smoke, there is too much weight atm for such a light particle. Like I said, the furthest waterfall to the left got more like the style I think would fit.
Also the highest waterfalls should have the biggest splashes but the difference is a bit too weak. If you want to add just a little more feeling to it, try taking the wind in account. I would make the largest waterfall on the right produce a semi-transparent foam going with the wind to the right, doesn't have to be a massive ammount of frames, but just an extra touch. That would also
take away the sharpness between the water and the rocks.
