Details competition no 434

Details 432 came from Orazio Gentileschi's Joseph and Potiphar's Wife (c1632) - now showing in the small, revelatory Gentileschi show at the National Gallery. It's a characteristically off-key drama - Joseph striding decisively away from the viewer, straight out the back of the picture; his would-be seductress left empty-handed, stumped, caught in an awkward, quite inarticulate gesture; and that stubborn lump of a bolster, an obstacle, emphatically not human flesh, the emblem of her failure. Today is the show's last day, before it moves to Spain; then the picture will return to its usual home in the Royal Collection at Hampton Court.

The first three correct entries came from: Ruth Falby, Devon; Mark Bunyan, London SW12; and N Carter, Leeds

In which picture by which painter can you find this flapper?

Answers, on a postcard, to arrive by Friday 28 May, to: DETAILS 434, IoS, 1 Canada Square, Canary Wharf, London E14 5DL. Three winners will each receive a bottle of champagne