3 is definitely my favourite!
i also like the scene of number 1, however i would have either included, or taken out the sky completely, the top right hand corner is a little distracting for me.. love the colour of the water though.
I see what you're saying about number 1. Quick fix with a crop. This was taken at 17mm, I wish I would have had a wider lens to get the entire river in the frame, instead of cutting it off on the left and bottom. To get this shot I was laying on my stomach at the edge of the cliff with my camera held out over the edge at arms length.