been looking at some of the first covers of polish editions of Dune books and I real like these ones. First one is by Kazimierz Hałajkiewicz while the second one doesn't have a credit on the site I found it- in fact if any of you recognise it from other language editions please let me know! It seems to be a klubówka published- so half-legally and I wouldn't be surprised if the cover was taken from some other edition. Or someone in the club drew it after all. I dunno.
Taken from this site- which has tons of information about (mainly) sci-fi and fantasy novels published in Poland. A real treasure trove of information but polish only- but you can look only at the pictures if you want.