Prints of this snow crystal available at: Artist website (mirrors at Pixels and FineArtAmerica), RedBubble.com.
Licenses for commercial use - at Shutterstock.com, 500px.com.
Also, you can find small and simple plate crystal at surface of bigger one, and this tiny companion also have triangular structure, with three shorter and three longer sides. This is strange and beautiful couple, in my opinion.
8 identical photos averaged to boost signal-to-noise ratio. Background: dark woolen fabric, natural light (cloudy sky), external optics Helios 44M-5, December 2014, Moscow, Russia.
This jewel available as ultra HD wallpaper:
One year ago i've captured similar snowflake: The core, smaller crystal with almost perfect hexagonal symmetry and simple, though interesting, volume surface:
If you want to see more snowflakes, you can browse through all snowflake pictures.
And here is article about snowflake macro photography.