Thank you. Well, this is a dreamworld actually. It's a dream of a Great Ash.
And the sky needs some explaining. This is not a sunset. Well, it is, but not in the exact meaning of this word, because there is no sun in my World. At the begining Great Ash had lighten up the world with his breath. And so the reason for the sky to have such colours is that, that the Ash is just beginning his breat in, and that we see as aurora .