The noble Arafinwë, king of Kôr and of all the Noldor of Aman. Although the image itself is absolutely stunning, I don't have idea of what he's doing in such a context; the surroundings resemble too much Middle-earth. So, just to formulate a couple of hypotheses, I would say he's either in Beleriand (during the War of Wrath), or he's inspecting the frozen wastes at the outskirts of Aman. But the environment doesn't seem to look like a frozen waste (a quite alpine touch). After having read the comments below, I learnt that it might be a sort of made-up tale from some fans.