Prints available at: Artist website (mirrors at Pixels and FineArtAmerica).
Licenses for commercial use - at Shutterstock.com.
8 RAW photos, taken as fast series, was aligned and averaged before main post-processing steps - for dramatically better SNR (signal-to-noise ratio) of this picture. Background: dark woolen fabric, diffused light of winter clousdy sky, external optics Helios 44M-5, March 2013, Moscow.
If you want to see more snowflakes, you can browse through all snowflake pictures.
Here you'll find snowflake photo wallpapers in numerous resolutions and screen proportions, up to Ultra HD 4K.
And here is article about snowflake macro photography.