As it turns out, the photo used is from a series titled Stille Berge, or, Silent Mountains, and it’s absolutely gorgeous.
“Photographing the Alps in my own vision was a creative process that developed over years. One day – or night rather – it clicked. … The night and its silence gives the mountains a sublimity, feeling of raw creation and aloofness that I strived to capture in my work.”
I’ve posted a few from the series below, including the one used on Yentus’ cover.
Visit his site for the full series. (The site is a bit weird. Follow these directions: English (beware fullscreen popup) -> Work -> Waterscapes -> Stille Berg -> Show Set)