Another great early cover by Byrne from COMIC BOOK READER 128 from 1976, again featuring Rog 2000 and Howard the Duck:




Byrne's Rog 2000 run in E-MAN ended in late 1975, and the first HOWARD THE DUCK issue (by Steve Gerber and Frank Brunner) was cover-dated January 1976.

It's really funny to think of Rog 2000 being jealous of HOWARD THE DUCK getting his own book, while Rog's backup series in E-MAN (issues 6, 7, 9, and 10) floundered.
Or perhaps this illustration reflects Byrne's wish to do a Rog 2000 series, and a sense that if Howard the Duck could get a regular series, then Rog was worthy of a regular series too.

Although Byrne seems to be fond of Howard the Duck too, as reflected in the number of fan illustrations Byrne has done of Howard the Duck.