This graffiti piece sits on the way to Neal's Yard in London and depicts Diana, Princess of Wales, transformed into Mary Poppins, holding an umbrella and meeting Prince George and Princess Charlotte, with Harrods written clearly on her bag. People stop in the alley right beside the work to take photos before moving on, and the street that continues from it opens into a lane with strong colours. The piece is not easy to spot, so it can be passed hundreds of times before being found by chance.