This is one of his lesser known works.
D. R. and Quinch are a couple of alien juvenile delinquents that make anyone out of the "Wild Bunch" look like Prozac munching vegitarians. They maim and kill entire civilizations just for the fun of it. However, the destruction is so over the top and the targets of satire so broad that it is not just mayhem for the sake of mayhem.
Alan Davis' art adds to the atmosphere. His aliens are all bizzare creatures that have traits that you will still recognize. (There is a pretty savage parody of Marlin Brando in one of the stories.)
Highly recommended. I am glad these stories are still in print.