Hey Bob.
I remember really liking Cascade Falls. It has so many cool drop offs along the course of the river.
Typically I don't like fallen trees in my waterfall images, I try to avoid them as they seem to always feel like a distraction. But no so in these ones of yours, I like what the fallen tree adds to the image.
And especially #2 is super cool. Scrolling down to see it as it's a vertical image, as the horizonal tree scrolls into view and the water below it starts to be shown, it actually felt like the image had a reflection in it. As I saw the complete image the tree acts like a border and it's like it's 2 separate images in one. That tree really adds a unique feel to that image. Good job spotting it and working it.