Vanguard exhibition director, Mary McCarthy, makes final inspections on the life-size bronze artwork by Bristol street artist Nick Walker, titled 'Moona Lisa, which is going on show for the first time at M Shed, Bristol. The bronze statue, weighing 260kg, has been installed in the exhibition, exploring the instrumental role Bristolian artists have played in the development of British street art. Picture date: Monday September 13, 2021.