The photograph was taken in a disused mine that is open to the public. Two light sources were used for illumination: a small LED lantern behind the pillar which gives a yellowish glow and a handheld LED torch that provides a blue-white light to illuminate the foreground. A slow shutter speed, wide aperture and high ISO made the most of the available light.

Nikon D800, Nikon 14 mm f/2.8 lens, LED lantern, LED torch
f/2.8, 1/13 s, ISO-6400

GIMP: Adjust curves