From the site:
"Our blog is a place to promote 500px photographers and their brilliant photos. Today we’d like to introduce you to Rich Cruse, South California based photographer and his colour bursting images. His silhouettes at sunset photos make for a beautiful series and perfect source of inspiration. You don’t need fancy equipment to try this technique, just grab a friend and shoot against the setting sun..."
Rich Cruse's Site [http://500px.com/cruse]