Here are my cards using the cut file. For this one, I cut a white card stock. I then stamped and water colored a Penny Black Poinsettia image. I traced the edges with a thin black marker to highlight the image.
This one is CAS. I just cut a Christmas patterned paper (from Pink Paislee's City Sidewalks) and adhered to a card base. Some twine and felt snowflakes (that I bought ready made) finish the card.