A few nice darkness images I found:
Crosses in the Darkness
Image by Lucid Nightmare
I loved all the different types of crosses here.
playing into the darkness
Image by ninja gecko
dan, playing his harmonica to the night, on sarakura.
From Darkness to Light
Image by Dru!
Chris Kiely climbing out of the South Gully on the Stawamus Chief onto the sunny but wet slabs of the Ultimate Everything route (10 pitches, 5.10b)