Looks potentially really interest, however there's something very odd with the large wedge of land with the castle on top in the middle - it looks like tones have been lifted a lot, and now it doesn't belong with the rest of the picture.
I don't know if that's really what's been done, but worth re-processing, I'd think.
Thanks ancient_mariner. No, nothing done in pp I can only assume there is a denser mist cloud but not sure. It's not so obvious in the colour version but it is still there.
Thanks for the comment and observation, very helpful.