...with some pretty nice stuff by a British artist named Russ Nicholson, who started out doing work for 70's fanzines.
The astronaut in this BORDER RUFFIAN 2 cover (1978) has a delightful quirkiness.
Another of his images, Space Marines, is crammed with detail and riveting in a completely different way. It's reminiscent of Heinlein's Starship Troopers, more representative of the book than the movie.