The idea of making appealing paintings on the walls of concrete, arched huts is just intriguing. This way, people get to fead their eyes with the allure that comes with the paintings.

If you were to give a caption to this, what would it be?

I'm terrible! at giving romantic captions but I can try something out for the second image. Judging from the landscape and the fact that such a place would have a lovely view in reality. A caption like..

"With you, every moment is a breathtaking view" may suffice.

But ideally, it's supposed to be something like "Linda, the love of my life, will you marry me".