As for #1 being a holiday snap: It's almost impossible to get this shot right in regards to the time of day.
The low angle of the sun is splitting the image in half (or thirds for that matter). In order to get both areas somewhat balanced it requires a bunch of post processing.
#2 is pretty good. I like the blue tint. No idea if you played with some post processing there but it enhances the mood IMO. Just a shame that the tree appears to be leaning towards the left. If it was leaning towards the center of the image it would have helped the overall composition.
For the rest I can't say much. It's not my cup of tea shooting at the beach against the sun.
#1 is tilted, and the shot just doesn't seem terribly interesting.
#2 I love. The composition is interesting, the coloring/lighting set a cool mood (was that done in PP?)
#3 not a big fan just a guy fishing
#4 phallic symbol going on there...
#5 I like, kind of tells a story. Guy walking kind of hunched over...tired after a day of work with the late afternoon sun in the back ground