User blog comment:Shacob/Concept Art I Can't Figure Out/@comment-24819226-20190905185019/@comment-10023421-20190909222807

I've noted that image search is not always comeptable when using it on "rare" concepts (aka concepts that aren't wildly chared online), some of them don't show any match at all, not even the original source.

As stated above, that particular concept was taken from http://www.rapturearchives.org/php/concepts.php