Original post here. This image was researched by Bacchus at ErosBlog as part of the “Δ commission.” The research was originally published at Hedonix as “Δ 020 – Is Anybody Out There? Here is what Bacchus found.
This image is cropped from the cover of a 1985 edition of a 1979 French-language science fiction novel by Phillipe Curval, titled Y a quelqu’un?, which title means, roughly, “Is anybody there?”
The Internet Speculative Fiction Database has a detailed bibliography and brief biographical information for Phillipe Curval. The same source identifies the artist for this cover as French artist Philippe Caza. That seems to match the thinly-drawn signature under the small male figure lower left in the artwork.