The artist is Roerich
The picture reflected one of Roerich’s ideas about Shambhala – as about the heavenly monastery: “It has nothing to do with our land only very rarely on the distant North, you can see the radiance of Shambhala,” Roerich wrote in his book Shambala ”.
Nikolai Roerich. In search of Shambhala. SPb, 2020. WITH. 115.