Procession of Planets illustration solar system Sun Moon Earth outer space astronomical print
The Vault Of The Atomic Space Age
Protector (1973). Cover illustration by Dean Ellis. The back cover shows the rest of the ring world, which actually is quite a magnificent sight. The ring concept—or “Dyson sphere”—is a popular one of course, appearing in various sci-fi and fantasy stories; I’ve posted illustrations depicting this same structure before. I googled “ring world”, and Google suggested “Molly Ringwald”.
The Facts in the Case of M. Valdemar: Harry Clarke‘s 1919 illustrations for Edgar Allan Poe’s Tales of Mystery and Imagination. Looks like Valdemar is turning, or melting into that "detestable putrescence"