There's an interesting interview with Syd Mead about his work on Blade Runner here: [1]

Mead also worked on Tron (among other films) and George Lucas made the AT-AT based on Mead's art.[2]

[1] - https://m.youtube.com/watch?v=6VPT-Ug-gF4

[2] - https://en.m.wikipedia.org/wiki/Syd_Mead