Since a sketch card doesn't have to be done exactly like the sketch, you are free to improvise. I decided to forgo the bird and make my central theme a snowflake. The buttons on the sketch became snowflake ornaments.
I used a piece of glossy banner paper and embossed it with Cuttlebug's "Snowflakes" embossing folder. After attaching this to the card front I then attached the blue strip of paper to the middle. This paper was punched along each edge with Martha Stewart's "Snow Flurry" corner and border punch set.
In the center I stacked two differently sized punched scallops with Paper Studio punches. On top of the two scallops I glued a single embossed snowflake made in the same way as the other embossed paper. The snowflake ornaments were glued on last and pressed overnight to assure good adhesion.
For the inside I scanned a piece of "snow flurry" embossed glossy banner paper with high contrast. I imported the scan into Microsoft Word and added the greeting.