Good eye, you look like you had a great start to shooting. On the second image I would like to have seen the point of focus on the shell. I really like the first and last images.
I love the first photo! I would have tried pulling back just far enought where you can still see the fisherman but get more of the waterfall. Plus narrow the view. Very nice!
Wow, these are GREAT photos.
I like the last one the most. The first one I think would've been even better in a vertical composition, if you could've squeezed that guy into it.