Yeah, I completely agree with what was said, summed up my thoughts perfect . The second one I feel like the main subject is the waterfall in the background(at least thats where my eyes go) yet its cut off. I think if you aimed up a little higher this shot would be great. the water and rocks in the foreground would lead your eyes into the picture where they would land on that great waterfall.

The first photo I just want to see more of the scene.

You have great subjects here and the slow shutter is good.