Here you'll find already processed triangular snow crystals. When i'll process new snowflakes of this type, i'll add here links to them. Just click on photos you like, and they will open as full resolution versions:
Here you'll find collections of simple hexagonal plate and complex fernlike dendrite snowflakes:
If you want to see all of my snowflake photos, you may 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.