a) Another artist Elliott Scott worked on a series of concept drawings supposedly in March of 1977 , basically showing scenes from the script from the time it included and ancient Red City part of which would have been filmed in Petra in Southern Jordan. Curiously in some of these illustrations, Ripley shows up as a female character. One might wonder if these were done in 1978 when that decision to make her female appeared to be made.These were in the possession of "Alien" executive Peter Beale until he auctioned them in 2017 at http://natedsanders.com.
b) Leviathan exterior and interior.
Leviathan becomes a vast rocket spacecraft shaped like a tuning fork with a sphere in the form. The inside is divided into smaller areas for humans to live in and vast chambers for storage and the engine rooms.
|Leviathan control room|
|Hypersleep Vault 15. iii|
|Ripley moving through tunnel ship|
|Tunnel set plan|
c) On The Planetoid
This shows that Scotty was working on concepts to do with a black ship that would be part of the Cylinder script, however the one shown here seems to be an alien looking spherical vessel surrounded by bands
Instead of the concrete bunker and also the city found in another script, here known as the Red City, with Petra being thought of as a location for some of the scene
|Red City Temple|