Pick favorite one and critique :)

I know I made 3 threads already but I am trying to improve everyday making pictures of different things and trying new tings. I hope you can help me to choose the best and tell me where I make the mistakes.

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Waterfall not cropped

IMAGE LINK: http://www.flickr.com …/86484080@N02/7​939681008/

I like #4 and the last uncropped version of the falls.

I'd go along with Flo on the uncropped waterfall, but disagree about the butterfly - it would be OK without the yellow flower directly behind it.