I used the lineart for my fursona as practice for making backgrounds. I think I did pretty good. At the top of the picture is the moon in the background, with the heavy fog and snow making it blurry somewhat.

The moon was originally meant to be a light from a lamp post, but it ended up as the moon completely by accident. I used a gaussian blur with x and y at 100 to make it look blurry.

For the somewhat dark background, I used a linear gradient fill with two different shades of gray.

lineart: http://www.furaffinity.net/view/3124486/
lineart made by  nek0chan
colored by me