Virgo, The Virgin. I think that's all that's required to explain the concept.
Theory: Mikhail Bakhtin - The Carnival Model.
The tone is to bring out the dark element of the zodiac sign in question. Ok. I lie. I asked the boyfriend to edit it and we figured a dark tone would look cool. Lol.
(P.S: Don't forget to notice the 'V' in the picture too. :P )