doesn't look too bad, try to animate it and post that, that'll be far easier to give feedback on,
although one thing is the perspective of the water fall over the scene looks bizarre, it seems it's because it is taller on the bottom and top from the clifface behind it, it would flow over the very edge of the cliff and it doesn't seem to, and it would crash at the base, it looks like it is cascading a distance away from the cliff face.
and after attempting to break it down into tiles, I can not see evidence that it is tiles, there isn't any re-used tiles at any tilesize, meaning every tile is unique which means while there is alot of variation the entire thing looks really inconsistent
try breaking the tiles down into as little amount as you can, then add variants if you really really want to