You guys are missing the drama of the story. The high level of argon in this atmosphere is causing irreversible hypertrophy of the cheekbones! That poor woman already looks almost exactly like the alien Shelleyan dragonfly.
My first thought was surprise that Hannes Bok painted the cover, given that he died in 1965 and at first glance this looked like a bad ’70s pastiche of old pulp cover art (yellow sky, check, parabolic parked rocket, check, dude and chick in ripped clothes, check, wacko alien, check). But no, this is a reprint of a 1955 edition and Bok did indeed paint the cover.
Boy, he sure phoned this one in. It just goes to show that anyone can have a bad day. Bok is usually a lot better than this.
According to the internet, this is about the last three surviving humans who, after having to abandon Earth because it was destroyed — right in the middle of a dinner party, from the looks of it — are now trying to get set up on a new planet and Keep Humanity Alive.
Look out, hideous bug-treasure troll-person, they’re after your land!
Pixie: “We don’t want you here, stealing out jobs and our pixie womenfolk! We’ll build a fence around the planet!… Oh, and we need someone to mow our lawns and take care of our kids, if you’re looking for work.”