Christmas card idea

If you're one of those folks who can never find the right card for the holiday season, and wind up printing your own, here's an idea for a Christmas card cover that Hallmark et al almost certainly haven't mined yet. You're welcome to it, but the pic isn't mine. It came from here.
It's based on the image from Rev 12, which, whether the pregnant woman is Mary or simply a symbol for God's people, this picture has a Christmas-y feel to it! Maybe if we put some Santa Claus hats on some of the dragon heads, that would help. Or harness a sleigh behind the dragon!

Not sure what the greeting inside the card should be, though. Suggestions, anyone?