My 5th Painting in Progress

Here's the current painting I'm doing...kind of a continuation from the last. Though whilst the last one was following a tutorial this one is straight from my head.
Anyways, I'm not sure if I can call it done or if it needs a bit more. I'm thinking of adding some trees or something either side of the water fall and maybe some more rocks.
I also thought of a fallen log half in the water but I'm sure I heard somewhere that people don't like dead things in their paintings (or is that just animals), tell me what you think it needs (or doesn't need).

My 2nd Painting

This is my second painting, again acrylic on canvas measuring 100cm x 75cm.

I can't say that I like it as much as the first painting. I like how the sky turned out but I rushed the water a bit.

Also, I think because I painted this from a photo I found of one of the local beaches I can't help but compare it to the photo and pick the differences.

Once again feel free to comment.