COMPETITION; DETAILS No 321

In which painting by which painter can you find this dark form?

Details 319 came from Poussin's The Ecstasy of St Paul (1650) - the Apostle rising heavily to the third heaven in a melee of angelic limbs. The picture is in the Louvre, Paris.

The first three correct entries drawn were from: NM Gorst of Lewes, Sussex; Barbara Murray of Burnley, Lancs; and Samuel Stogden of Crewkerne, Somerset. Congratulations all round.

Each will receive a bottle of champagne, as will this week's winners. Answers on a postcard (to arrive by Wednesday 5 February) to: DETAILS 321, Arts Desk, IoS, 1 Canada Square, Canary Wharf, London E14 5DL.