This artwork illustrated by Phillipe Druillet was originally appearing on the cover of Métal Hurlant N° 2, a French comic anthology of science fiction and horror comic stories published by Les Humanoïdes Associés founded in December 1974 by comic artists Mœbius, Jean-Pierre Dionnet, Philippe Druillet and financially backed by Bernard Farkas.
Métal Hurlant predated and inspired the American publication Heavy Metal (1977). Early issues of Heavy Metal directly translated and reprinted stories from Métal Hurlant, featuring the same artists (Moebius, Druillet, Caza, Bilal, etc.).
Phillip Druillet has a fascinating body of work you can explore further on his personal site philippedruillet.com.
View the first issue of Métal Hurlant uploaded to the Internet Archive.