Lower left are supposed to be cobble stones, but I forgot to add a compute terrain (in fact I threw it out), so the stones didn't come out well and the shrub floated here and there.
The people are going to the beach
I can make this a lot nicer I think, but the people are extremely low poly. I liked the bleakness of it, as I wanted to give the image a somewhat estranging effect. That's why I didn't add any clouds, by the way. Perhaps it would be more interesting to make an overblown desert station, without all the houses, but just the station. I have been thinking hard about making sickle shaped dunes (all oriented the same way, but different in size and shape), but that's hard. Some blue nodes would probably do it, but that's not my forte.