The Two Rainbow Deserts

"Starfog." 

There is a Rainbow Desert on Hermes and another on Kirkasant (also here).

Observing the Cloud Universe cluster from the surface of a lifeless planet, Graydal describes Kirkasanter scenes to Laure. In a film, we should see the characters on the lifeless planet and also each scene as Graydal alludes to it. Is the Rainbow Desert a desert beneath rainbows or a rainbow-coloured desert? When the sun sets on the Desert, night is sudden and there are auroras above the hills so are they the source of the name? The other three scenes are flying flocks rising, battlements over the banners of Ey and a new year folk dance. The story never takes us to Kirkasant but there are several opportunities to show us such scenes - as well as the colourful, crowded Cloud Universe and the surfaces of some of its other planets.