Snow… That’s what winter is famous for, right? So it’s a part of almost an winter illustration, unless we are speaking of tropical winter. There are not to many approaches to depicting snow in vector art. In this inspiration pack you will see some powerful techniques that can help you in your future projects.
Minimalistic round snowflakes
Diagonal ellipses to create dynamic snowfall
Blurred snowflakes that add the depth of field and movement effect
More natural crystal-like snowflakes
Finally there is a nice tutorial on Vectortuts+ that covers this topic.