This one was inspired by DPChallenge's "single artificial lightsource" challenge. And since I took the photo, and like it, I even submitted it. I haven't submitted there for over a year. I don't think it'll go down too well (too abstract, single lightsource not glaringly (pun intended) obvious), but it will be nice to have an update button to check again :)

Post-processing included level adjustment, toning.