This pencil drawing is a very realistic and atmospheric vision of the future world.
The idea was that our civilization had to leave Earth as it was polluted and destroyed beyond repair, and the last living people had to build a life for themselves from scratch on another planet (that's why there are three moons), in different galaxy.
Architecture is situated in a barren landscape made of bathed rock. The building itself comes of as foreign and alien, with its smooth texture and strange shapes. Moon and lights makes the whole picture look mysterious and moody.