The first one doesn't do much for me. Interesting thought, just not very interesting as executed.
I like the second one, but I have some suggestions for composition. I would have framed it to where the waterfall was more on the right of the picture, with empty space on the left, so the water was flowing into the frame. This would also get rid of the rather distracting sun spot on the right. A smaller distraction is the highlights on the water, but this is minor. It's just something I noticed.
Not sure if that's even 2 cents worth, but there you go.