Have you checked out the Stamping 411 blog yet? It is a great place to find challenges and share your artwork without being solicited to purchase product. Each weekend the operators at Stamping 411 post a sketch and then share what card they have made based on this sketch.
This is this weekend's sketch and here is my version of the sketch
Stamp Sets: Just Believe, Curvy Verses
Ink: Concord Crush
Card Stock: Concord Crush, Pear Pizzazz, Blushing Bride, Very Vanilla
Other: Elegant Lines Embossing folder, Beautiful Wings Embosslit, Very Vanilla 5/8" satin ribbon, Always Artichoke Stampin' Write Marker, Blushing Bride Stampin' Write Marker