That poster was hanging on my bedroom wall in my first apartment!
I always consider Starman to be the superhero comic that even non-superhero readers like. A friend of mine in the '90s read Vertigo and B&W indie comics exclusively. . . with the sole exception being Starman.
He and I nerded out when the Starman/Sandman crossover was released. Those GORGEOUS pages when Jack first sets foot into Wesley’s study and the sunset has lit the entire room in red. 
Harris and Robinson are one of those one-in-a-lifetime collaborations that truly demonstrate the magic of comic books.