I made a card similar to this one at a class by Sue Madex earlier this year. She showed me the reverse masking technique (Jennifer used a variety of this technique in the Holiday card boot camp today). I added some diamond stickles to the snowflakes for some shine.
I also like the way Jennifer adds hemp twine bows behind design elements on her cards. I didn't have any cardstock in the same mid-blue as on the middle-sized snowflakes, so just like in Jennifer's tip, I used Distress Ink to make the border tthe same colour as the stamped snowflakes - perfect match!