I have always thought it was just a coincidence or an intentional reference, but there actually exists a connection between Hipgnosis (British design studio responsible for a lot of prog rock album covers) and Psygnosis (British video game studio whose logo has a very prog rock look to it). The connection is the artist Roger Dean.

Another connection I was unaware of: the artist whose painting graces Eno's Another Green World is also the artist behind A Humument, a popular piece of modern art.