With my girlfriends help spinning the wool and me across
the small frozen pond out back we were able to capture this shot
containing the wool trick and the glow of the city lights behind her
and the trees. Took a few tries but we had a lot of fun with this
technique. - John Petersen

Shooting summary: Canon EOS REBEL T3i with EF-S18-55mm f/3.5-5.6 IS II
lens at ISO 800 with aperture of f/6.3 and a 6 second exposure, shot
in RAW format and adjusted hue, saturation and contrast with Digital
Photo Professional in post processing to achieve the violet coloring.