I love the kraft, yellow and gray combination! Here's one of two cards I made using the color throwdown.
I used a Darice die to cut the tree out of kraft card stock. The sentiment is from My Favorite Things and I used a little flower punch to punch out the yellow flowers. Added some pearls to the flower centers and some yellow twine. I used several My Favorite Things rectangle dies to cut the white and gray card stock layers. All mounted on a different shade of kraft card stock.