Via Starwars.com:

HELLO, WHAT HAVE WE HERE? SEE RECENTLY UNEARTHED LANDO CALRISSIAN NOVEL CONCEPT ART AND MUCH MORE.

Most Star Wars fans are aware that Ralph McQuarrie painted the cover for the first printing of the movie tie-in issued in the fall of 1976, six months before the film’s release. And that he also painted the cover for the first Expanded Universe novel, Splinter of the Mind’s Eye. But few know that he developed an unused cover for the novelization to The Empire Strikes Back, that one of his paintings was used on an early mock-up for the Return of the Jedi novelization, or that he did preliminary design work for the first of the Lando Calrissian adventures. This three-part series (check out parts one and two in case you missed them) explores both the published and unpublished Ralph McQuarrie Star Wars artwork for Del Rey books from 1976-1983.

Part III – Return of the Jedi and Beyond (1983)

Return of the Jedi

While Ralph McQuarrie worked on initial concepts for Return of the Jedi, he did not stay on through the completion of the film as he had with the first two chapters in the Star Wars saga. As a result, many of the production paintings he created were for sequences that didn’t make it into the finished film, such as these sequences (below) of Vader taking Luke to meet the Emperor in his volcanic lair beneath a grand cathedral on the Imperial City (that would come to be known as Coruscant in the Expanded Universe and prequels).

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