I've always been a fan of Chiaroscuro and dramatic light and shade. I've been experimenting with the effect in some images and recently did this which I thought would fit this weeks topic.
This is a Deltadromeus. yes its back to the dinosaurs for this one. seemed like as good a subject as any to practice the dramatic light on :) It was a large theropod dinosaur from Northern Africa late Cretaceous about 95 million years ago. It had long,slender hind limbs for its size, suggesting that it was a swift runner.