This contest ended in December 2013.
Check out this Tyrannosaurus rex and Triceratops drawing. This isn't a drawing tutorial, so it doesn't have step-by-step instructions like the others because this drawing is more detailed. But feel free to follow along if you're up to it!
See the final Tyrannosaurus rex and Triceratops sketch and the digitally colored version below.
Click on the pictures to enlarge.