In 1994 the Guardian commissioned this portrait of some of its most trail-blazing writers. 'Women's Page Contributors to The Guardian' is by Sarah Raphael and it's at the National Portrait Gallery. The editors Mary Stott and Liz Forgan sit with the cartoonist Posy Simmonds and the columnists Jill Tweedie and Polly Toynbee. The painting is a tribute more than a celebration: it conveys everyone's sadness as Jill Tweedie is dying of motor neurone disease.