As we move towards the day with the least daylight, the luminous paintings of Anna Ancher (1859-1935) provide a lovely corrective, so we shall have five on the Post this week. The first-ever UK exhibition of this Danish painter is now open at Dulwich Picture Gallery (until 8th March 2026), and it includes The Maid in the Kitchen (1883-86) of which Laura Cumming writes, "Yellow-gold light dances through a fine muslin curtain across the window, illuminating the surfaces, glowing against walls, pooling on the wooden floor".