Is this the most archetypal 1970s science fiction book cover?

Amazing fashions, including catsuits and furry vests, adorn the hep cats in this spaceport.

This image, by artist Jim Burns, appeared on the cover of several science fiction books in the 1970s, including Burns' own Planet Story, with text by Harry Harrison. Frequently cropped in various ways, so that only some of the random ensemble of figures turned up, it graced an Isaac Asimov-edited anthology, and a Games Workshop package. So who are all these people, why are they hanging out together, and why are they all looking in different directions? [Good Show Sir]