WebMD's Vagina Anatomy Page provides an image and definition of the vagina Itching, discharge, and change of odor are typical symptoms.
And unless your normal involves pain or discomfort, everything is likely fine. Still unsure? Take a look at these pictures of real labia to get a.
You don't have to fret any more with the Labia Library - a collection of pictures which aim to reassure women on all aspects of their vagina.