The exhibition devoted to the Victorian artist John Atkinson Grimshaw (1836-1893) is the autumn highlight at Richard Green's flagship Mayfair gallery. Grimshaw began his career painting in the style of the Pre-Raphaelites but his mature works are more romantic conjuring up leafy lanes of suburban Leeds and the shadowy dockyards of Liverpool and London. Famous for his moonlight scenes, it was of these that Whistler is reputed to have said: 'I thought I had invented the Nocturne, until I saw Grimmy's moonlights.â€