i like the perspective and sense of size with the kids dwarfed by the falls. the lighting is pretty harsh and the specular lights on the stream can be distracting. the biggest problem, imo, it the crop. way too much on the bushes which honestly are not interesting and only take away from the real subject
interest scale. the people really gives it a sense of scale. that's a huge waterfall. i wonder why the less-interesting trees take up most of the image?
The trees are so prominent that I only noticed the falls after I started looking around the frame. A narrow vertical crop focusing on the falls with perhaps a little more foreground showing would have been nice. the people in the shot give a nice size reference.