The two trunks of a silver birch growing up from the moss covered ground in the old slate mines at Tilberthwaite. I used a wide aperture to throw the background trees out of focus so as to bring attention to the wonderful bark.

The technical bit:
Location - Tilberthwaite, Cumbria
Camera - Nikon D800
Lens - Nikon AF-S 105mm f/2.8G ED-IF VR Micro
Aperture - f2.8
Exposure - 1/50 second
ISO - 100