Here is the opening two panels of last week's Justice League Dark, by Peter Milligan and Mikel Janin.

And this is "Into The Mist" by photographer and artist Greg Martin on DeviantArt

UPDATE: In the comments Mikel Janin writes;

"Yes, obviously I used this photograph as reference for the image. As you can easily see it's not the same image filtered as someone said, but I admit it was the main source in this drawing. I didn't find it in Deviant Art but in a wallpaper stock image site, and I really thought this image was copyright free. (Dark wallpaper doesn't exists, please navigate on the left to find your wallpaper from wallpapers personally think that using photographs for reference it's always ok, using your own photographs, stock images or similar. When I need a photograph for reference I buy it or I download it from a free copyright site, or ask permission to the author of the image. I'm sorry I didn't seek enough to find the person who did this one. The debate about referencing in art is old and don't want to start one here. Someone so big and respected in the industry like Stuart Immonen explained something about it way better than I could do. (Stuart Immonen on Computers and Art | Comics Should Be Good! @ Comic Book Resources) Thanks to Bleeding Cool I've found the photographer, so I'm going to write him to clarify this. My sincere apologies to the photographer, and to anyone who can feel cheated by the use of an image as reference."

In Swipe File we present two or more images that resemble each other to some degree. They may be homages, parodies, ironic appropriations, jokes, coincidences or works of the lightbox. We trust you, the reader, to make that judgment yourself. If you are unable to do so, please return your eyes to their maker before any further damage is done. The Swipe File doesn't judge, it's interested more in the process of creation, how work influences other work, how new work comes from old, and sometimes how the same ideas emerge simultaneously, as if their time has just come. The Swipe File was named after the advertising industry habit where writers and artist collect images and lines they admire to inspire them in their work. It was swiped from the Comic Journal who originally ran this column, as well as the now defunct Swipe Of The Week website.