'It's horrible!': David Hockney muse on latest portrait as older woman

First big exhibition in 20 years focuses on passage of time, seen in Celia Birtwell drawingsTo say Celia Birtwell is not a fan of the latest portrait of her by David Hockney might be an understatement.“Oh it’s horrible,” she said, peering quickly and reluctantly at a smartphone picture of a large drawing on display for the first time at the National Portrait Gallery. “He says, ‘Celia you look very wise.’ I thought, ‘I bloody don’t’.” Re