1st one is nice, great exposure, im more of a fan of wide images instead of tall, but thats purely subjecive on my part. there does seem to be a bit of a halo around the tower though.
2nd one is lovely. Litle i would change here. I would try to give it a “little” more punch in photoshop, but it could be perfect as is.
3rd one is nice, exposure is good but composition is not my thing.
4th one looks like HDR or something, and to my eye is a little over processed, in that it does not look realistic. Again, there is a hint of a halo around the foreground trees.
Nice shots jonny, I especially like the Portavogie Rock Pool…interesting sky too with what looks like 3 jet streams converging over the horizon.
Guessed they were all HDR, what software?
Mike