Nikon D3100, 18-55mm Nikkor lens
It took me forever to think of something for "imperfect", since Nola is my perfect dog and her markings and body have no real imperfections. But I wound up settling on a shot of her blond whisker amongst her stark black ones. If you look really closely, you can see the other one to the right. I'm not terribly happy with this picture, but it turned out okay since I was violently sick when I took it yesterday.