In February 2005 he accepted an offer to pencil and ink the interiors and covers of the new ongoing monthly title "Of Bitter Souls" from studio Relative Comics, originally published by Speakeasy Comics. It was written by Chuck Satterlee. Shortly before Speakeasy Comics went out of business, Relative Comics joined with Chimaera Studios and moved to publisher Markosia Comics. Breyfogle produced illustrations for a wide variety of clients outside of the comics industry including Nike, Inc., "Mojo", "The Red Bulletin", "Time Out", "Company", "Süddeutsche Zeitung Magazin", and various bands such as 12 Stone Toddler, among many others.