Recently they have started "Challenges" in which they anounce a subject and invite artists to take the challenge by painting their version of the subject. One of the recent "Challenges" raised over $28k to assist various charities with their Japan relief effort.
I took this weeks challenge to "Paint a Vegetable" and contributed a Red Onion.
4 x 5 inches on Canvas
The painting is available at Daily Paintworks for $95 plus $15 freight