Perhaps the most endangered 'big cat' in the world, the Amur leopard ranges in the valley along the Amur River—which trails the border of China and Russia. This is an amazing animal from Brookfield Zoo in Brookfield, IL. It was a joy to paint. After studying every inch of this cat, I am in awe of its beauty. The spots in themselves are each unique, none are the same. I can't wait to study another animal. So much to choose from.