Well edited. And it was an excellent idea to remove as much clutter from the subject as possible. I would have never guessed it the “falls” were fed by a culvert. The green moss adds much needed color too.
You’ve got the flowing water effect down very well. It’s not hard; it just takes some time to set up with intimate subjects like this, at least as I’ve found from my experience. A polarizer is always nice to have for waterfalls, but because there are no pools, I don’t think it would have made much of a difference, except for perhaps the glare on the rock.
My first thought when I looked at the first image was “I wonder what it would look like vertical?”. So I was presently surprised with the second image. However, I think the vertical one isn’t zoomed in enough. Think about where your eye travels, from point to point in the image. In the first shot, my eye sees first the pretty up-close “falls”, then it moves to the second pretty “falls” behind it. Then, instead of going back down to investigate the soft, mossy rocks around the first “falls”, it is attracted to the white sticks in the top left corner. That’s why I thought it would look nice vertical. It would zero in on those three pretty elements.
When I looked at the vertical one, however, it was zoomed out so far that it included so many other elements that I didn’t even know where to start really. There are four “falls” and none really stand out as a starting line for my eye.