'Pissarro, alongside all the Monets, seems almost garrulously sociable. Figures appear in every scene. A mother and child sit by a brook as harvest fields meet to the water, crops turning golden-orange in the warm air. Beneath a cloud of efflorescent spring blossom, Madame Pissarro is seen arriving safely home, as if the picture (and the life) were not complete without his wife (Laura Cumming here).