David Bowie work in Peter Howson family auction

Sketches and drawings of David Bowie and Madonna are among 390 works by renowned Scottish artist Peter Howson which are being sold by his ex-wife.

Terry Howson is putting the works under the hammer to raise money for their daughter, who has Asperger's syndrome.

The 10 Bowie drawings are from 1994 when he posed for the artist. There are also 10 sketches of Madonna and early drawings of Howson's teachers at Prestwick Academy.

The sale will take place in Glasgow on 28 April.