Hi Rogue85 and welcome to the site.
You can find a fair few differing covers and artwork links (as well as some useful links) in here mate:-
Also, please take the time to look around this section of the site to try and find what you are looking for - there are many classic posters that have appeared on the various releases of Star Wars down the years - but hopefully you’ll find what you are looking for.
Good luck 😃