LONDON (REUTERS).- Artist Tracy Emin provided the kind of emotional drama she is famous for, but it was cross-dressing ceramicist Grayson Perry who delivered the shock blow at the opening day of the British Royal Academy‘s summer art exhibition show in London on Monday. Emin had four works and Perry only one on display in the world’s largest open submission contemporary art exhibition held every summer at the Academy’s imposing 17th century building in London’s luxurious Mayfair neighborhood. Emin and Perry’s work rested alongside more than 1,200 works of art from academicians such as David Hockney and David Mach to “Hub 2007 – 10,” an inkjet map of London which competed for space against the 300 photographs, mixed media, paintings, etchings and drawings in the building’s Large Weston room alone. Texan tourist