http://www.riftgame.com/en/promo/dimensions.php
The above link will give you the details, but basically it is a screenshot contest with some great prizes for participants and voters alike. You don't have to be design savvy to win stuff, but if you love dimensions there is a whole two weeks of livestream events about to take place along with this contest. Sounds like a fun event, and a chance to see some great designs for dimensions. I know many people in guild love this stuff so I thought I would make it public:)