Holiday cards with masked monochromatic panels

Once I get started on a technique, I really like seeing where it can take me.  I had this cool grey paper that I've been hoarding for a while, and thought about using the color blue with some holiday stamps  from the Silent Night collection at Club Scrap.  The stamps have a cool stencil-type look, so I played with these to see what I could make.  The rest of the paper is from the Raku collection at Club Scrap.  Here are some of the cards I came up with:

The Christmas tree stamp is a collage image from Club Scrap that is no longer available.   I really like how these are holiday cards, but they use a fairly non-traditional color scheme.  The Raku kit isn't even for holiday cards - what color combinations have you used for holiday cards that are non-traditional?

If you've been wondering how to set up your tape to do the masking, or want to see how these monochromatic panels are different from the ones I've previously shown, check out my latest tutorial video.