Backlighting not only abstracts the subject, such as these trees, but it creates a translucent glow as it passes through these cumulus clouds -- all that remains of a powerful thunderstorm that had swept through this vast game park only minutes earlier. I exposed for the sky, and allowed the trees, road and safari vans to become darker as a result. The subjects of this picture are the illuminated clouds. The tiny vehicles provide a scale contrast, indicating the size of these huge clouds.