I think Tom Beauvais would be the first to agree. He was a very close friend with Chantrell and worked with him for many years and will confess to being somewhat in awe of him. Chantrell's Star Wars is regarded as one of the top ten movie posters of all time, there is certainly no shame in coming second to that. Chantrell was an incredibly prolific poster artist, it ran deep in his blood.
Sadly when Steve Jobs released the Mac the industry changed very quickly. The artist with canvas and the paint brush was replaced by the designer with the mouse. You could move an X-Wing 2cm to the left or make an actor appear 15% bigger on the poster with a few clicks rather than having to do a repaint. Chantrell never lost his love for it and even though the work had dried up there are stories of him attending townhall poster swap meets anonymously to chat with hobbyists about the posters. He passed away in 2001.
I think it's really nice to see the 3 UK versions of Star Wars from '77 together.