In reply to RX-78:
To that list I might add the contemporary artist Paula Dunn - landscapes tending toward the abstract. I have a couple of prints and a couple of originals. https://pauladunnartist.com/
Sarah Harris - screen prints, lots of landscapes including some some crags. I have several prints. https://www.sarahharrisprints.co.uk/
Jonathan Trotman - oil and acrylic landscapes, lots of mountains, often including mountaineers. Have got a print and would love an original. https://jonathantrotman.co.uk/
And for more traditional landscape painters in watercolour you can't go wrong with Alfred Heaton Cooper and William Heating Cooper!