PPA (http://www.palspaperarts.com/) offers a weekly challenge to help you get through that mid-week slump. Each Wednesday you can find a new sketch, color challenge, or a variety of other options to get your creativity going.
A beautiful speckling effect can be created by layering stamp over stamp over stamp. If you add a set which features the two stampin' option you can generate a dimension effect. To complete the look, I added a few stamped and cut out flowers and added a simple message.