This is a wonderful series, Chris.
I like them ALL.
Maybe I'd forsake the sky in the first, it was a nice sky but it's real beauty does not show as well in your photo, so you could (by cropping) direct our eyes (or mine in particular?) more towards the typical colour of the Emerald Isle (maybe?

). I'd like that! (And I wonder if or if not I have been to the places where you went to on your little outing? Might well be the case!)
I am very, very partial to fence posts myself, so I must like the weathered fence post in your Photo 2.
Composition and colours of your Photo 3 are excellent, I say. That old heather looks so good in the meanwhile kind of low and lovely side light you had for your Photo 3, and I find the "placement" of the two rocks really good. (Of course you could not place them as you wanted in their surroundings, but you could decide how to place them within your frame!).
In the first of the two b&ws I really like the inclusion of the far coast and the power plant (?) in Carrickfergus (??).
The last is quiet, relaxing, well seen and well taken. Pity about his blown-out white hair. You think you can still do something about it?