Wow - that picture of the waterfall is stunning. My wife is from North Wales, and I know that area well - I recognised the quarry straight away - its beautiful around there. And your picture of the waterfall reminded me of a stunning print by the welsh artist Kyffin Williams. Its a black and white print (looks like a cutting) of a waterfall, and is just stunning ! It reminds me that I need to get a copy !
Thank you @hoosie! Your wife definitely comes from a gorgeous part of the world. It would have been nice to stay there longer, the visit was a bit of a rush. I had to Google Kyffin Williams - he captures the landscape and mood very well in his paintings. I think I've found the waterfall work that you mention - it looks like a lino print, and is really graphic and beautiful. :)