Here's Card #1: O Christmas Tree
I saw this card done white on white as well and it was exquisit! Really an elegant card. The tree is a Cuttlebug embossing folder.
I used a clear glitte glue to add a little ornamentation to the tree. This picture just doesn't do it justice. You can add any sort of brads, colored glittered glue, etc you would like to ornament your tree.
The inside: "CHRISTMAS"
Here's card #2: "Joy"
White ornament came from Joys of the Season (JOTS) cart. I also used a Martha Stewart border punch along the edge and Cuttlebug embossing folders.
My Cricut died on me this week and they are sending me a new one. So, the inside of this card can have a "Merry Christmas" in white cardstock that matches the font of the "joy" on the front.