Variations of one photo

On Saturday I took a photo of our community's clubhouse during the snowfall. I tried, but failed, to get streaks made by snowflakes. My shutter speed was 2 seconds. What is your technique for showing snow flakes?

I was interested in trying different digital filters on this photo, so my variations and descriptions are below. Unfortunately I failed to adequately keep track of what I did to accomplish each variation. I would love to learn of your techniques for noting changes in each variation of a photo.

-original is the unedited file out of the camera. I wanted to use a long shutter speed to show the streaks from falling showflakes, but these streaks can only be seen when looking at the front doors.

 -8. The Photoshop oil paint filter brush settings were all in the "8" range.

-2. The Photoshop oil paint filter brush settings were all in the "5" range.

-graduated_filter.  Uses the Nik Color Efex Pro filter, with the "graduated filter" preset.

-oil_paint-Topaz.  I can't remember what was done in Topaz  :-(
The Nik Color Efex Pro filter was used, with the "vignette" preset.

-solarization.  The Nik Color Efex Pro filter was used, with the "solarization" preset.

-tonal_contrast.  The Nik Color Efex Pro filter was used, with the "tonal contrast" preset.

-vignette.  The Nik Color Efex Pro filter was used, with the "vignette" preset.