Number 1 doesn't feel in focus to me, and I am almost completely sure it is not just my monitor.
Number 2's bokeh in the right corner is beautiful. It's stunning. Once again though, the dragonfly is a little bit soft.
Number 3's concept is good. I like the composition. I don't mind the man being in the middle because he fishing rod goes off to the side and the rocks go off to the other side, so I think it's fine. It reminds me so much of Fiji, where was it taken?