Lovely bunch Simon! For me No 1, No2 (that surprised me not always a B&W fan), No3 initially didn't do anything fore me but went back several times, it's growing on me! No5.
No1, lovely wet big Pebbles with light brushing across them, interesting jetty in the background and nice light.
No2, nice textures in the jetty, and shadows in the water, light hitting the supports, clarity in the jetty offset by the slightly wooly clouds.
No3, didn't grab me at first. Now got it. Lovely lead in lines funnel shaped clouds with blue popping through, golden light coming in from the right hitting the LH shoreline..... Nice!
No5, like the composition but something isn't sitting right with me, love the sun on the horizon and it's reflection on the foreshore. I think what I was was the rocks in the foreground and slight haloing (on this laptops nun to clever screen) however it looks better on your website the rock seem a tad lighter and the post looks cleaner more defined.
Good stuff Simon
Oh yes btw No4 just seems I little to flat to me.