Darrel Anderson and I did several covers for Eternity Science Fiction in the mid-Seventies. Darrel pencilled this one, and I inked it and did the red overlay in pencil. Shown below is the base art.
I very much admired Darrel's style of the day, and I wasn't alone in my admiration. When I published Darrel's work in Realm, we received great letters of praise from Michael Kaluta, Vaughn Bode and many others. Darrel continues to collaborate quite a bit, especially with Rick Berry.