For my card I used the 2nd and 3rd colors in the graphic, plus the last one. I incorporated the brighter blue in with my DSP and the trees, and the darker blue is my card base and what I used for the sentiment. The light brown color was used on the edge of the trees for a bit of a shadow affect. I also used a retired SU TIEF to create the snowy ground below the trees.
Make sure and head on over to the Sunday Stamps blog to see what the rest of the DT created and then play along with us, we'd love to see how you interpret the colors!