Technically, they don't really say snowflakes to me..Mostly because Snowflakes are always 6 sided in nature. And probably because my Sister has a thing about that, so I have head it a million times (She is an Art teacher so snowflakes are involved in her life!).
BUt I love the pattern, and I think to many people it would represent snow. I think the colours you chose sort of seem to represent a transition from late fall to early winter! very subtle and nice!