Rock Art or Graffiti?

With rain forecast for the day I headed for Garfitt Gap below the Wainstones to try and photograph some Bronze Age cup and ring marked boulders. The boulders were easy to locate but the markings were not. The book I have has some drawings showing some intricate markings. Seems a bit of wishful thinking to me. A disappointment then but I did manage to photograph this piece of art on the way back. I know its not a Venus de Milo and not quite an antiquity but it is curiously pleasing. On a crag overlooking Hasty Bank.