Public domain photo of a Chinese pharmacy in California in the late nineteenth century that was altered with the Photoshop paintbrush, then the Topaz Clarity plug-in (high contrast and color pop effect), then the Topaz Impression plug-in (Cezanne 1 type 14 effect), then the Alien Skin Exposure X2 plug-in (clarity and saturation brushes), then the Topaz Clarity plug-in (external texture effect), and then the Photoshop paintbrush. Public domain image courtesy of the Library of Congress. Full-size JPEG image download on Flickr.