All this picture is, is an enlargement of a postage-stamp sized bit of my John The Baptist religious icon currently in progress. I had the idea of enlarging the scan so that I could share what the brushwork looks like. Then I wanted to use a Photoshop Unsharp Mask to fix the textural detail of the lines. However, I had the mask settings way off. Photoshop does not reset its sliders from project to project, so if I don't zero out the sliders I get whatever values I used in my previous project.
In this case, I accidentally ended up with this scene that looks to me like the cover for a Frank Herbert "Dune" novel, or maybe something John himself would have seen after enduring the desert on his own for over a month.