Prints available at Artist website (mirrors at Pixels and FineArtAmerica), RedBubble.com.
Licenses for commercial use - at Shutterstock.com.
Unfortunately, i photographed this crystal not as good as it deserves: from 8 serial shots, which i've took for averaging process, 5 photos have poor lighting, and i had only three good source shots to work with. So, i've tried my best to remove noise as possible while preserving all significant snowflake details.
I processed this crystal in warm pink colors for birthday of my girl Lucy:
Later, i've enchanced this snowflake photo for slightly better contrast and colors.
And this is alternate color version:
Prints available at Artist website (mirrors at Pixels and FineArtAmerica).
Licenses for commercial use - at Shutterstock.com.
Also, one year after i was lucky to take photo of another snow crystal with six tiny hearts, connected to corners of central hexagon. This snowflake much bigger than first specimen:
If you want to see more snowflakes, you can browse through all snowflake pictures.
And here is article about snowflake macro photography.