Only the first made me feel like I was there but none of them made me feel like I wanted to be there (which is what I look for.)
For example, the waterfall pic, maybe a longer shot or different perspective to remove the bubbles on the surface of the water.
The river/lake with blue sky above it has too much blue. Probably could do with some cropping off the top and definitely some adjustment to correct for lens curvature.
In the big reflection, nice material but the sky is just wrong.
The pond in the meadow is nice but there's something wrong with the sky colour in the water. It also feels lopsided.