I love these examples of early Star Wars and Empire Strikes Back posters with alternate logos and artwork. Even the finished film poster above has a rare shot of the heroes with Leia in Chewbacca‘s arms and the uneven red ‘crawl’ logo which is quite badly rendered when you look at it.
Below is an even earlier version with Ralph McQuarrie paintings plus an invite to one of the first public screenings.
Actually, for all I know, these could be fan art but all the images are sourced from the Star Wars Archives page on Facebook which lends some sort of credibility to them.
Below we get yet another logo with a Luke on Tauntaun image.