George Lucas wanted something more “comic book-y,” and the Hildebrandts were brought in to do just that while keeping the general idea and composition of Jung’s poster.
https://io9.gizmodo.com/the-story-behind-one-of-star-wars-most-recognizable-pos-1840937465
@estherschindler I remember winning that poster at a fun fair and it stayed in pride of place up on my bedroom wall until I went to Uni.
Sadly it got lost in a parent redecoration of my old room at some point.