You are welcome to use any shape and I chose to use an aperture to give a negative frame effect. I sponged the sky, stamped the trees (Lovely As A Tree, such a classic) in silver. Then I added ripped paper snow, with a touch of dazzling details to look frosty and a flying Santa from Winter Wonderland before placing my die cut aperture over the top. The sentiment is from Ornamental Pine.
I've added three stamped silver stars and a silver cord, mine stretches over the whole card and that's cool as well, just don't leave off a ribbon, we need to see all the elements of the sketch there in some way or another. I'm going to enter my card in Crafty Hazelnuts Christmas Challenge, haven't been able to play over there for a while so that's good this week.