Welcome on board nikonD80,
let me guess you shoot cannon, right?
must admit the waves don't do much for me either - envious of a holiday at the beach yes, but a little washed out in terms of the pictures (yes, i AM terrible)
the palm trunk in no.1 is more my taste,
and i am freely admitting jealousy of your zoom in no.4: a peaceful shot, but quite a long crop?