Black and white photography is beautiful. It's not what the photograph looks like that is captivating, but what is in the photograph that draws all the attention. It's hard to have a good subject matter and composition, but when you find what you need to have in the picture, it's beautiful.
Color photography, in comparison, is only beautiful when the colors are perfect. It is hard to have perfect color, but it's possible. Blue eyes to me are beautiful. In a photograph, showing blue eyes is hard, but with deep rich colors, it is amazing.