Rosemary Murray, 77, (left) and Maggie Shepherd, 65, some of the 'Graffiti Grannies' that took part in an over-65s street-art workshop at this year's Nuart Aberdeen Festival. PRESS ASSOCIATION Photo. Picture date: Friday April 19, 2019. The annual festival features the work and installations of international street artists in and on buildings around Aberdeen city centre. See PA story ARTS Nuart. Photo credit should read: Jane Barlow/PA Wire