Editor’s picks | Egon Schiele’s figure studies are notable for contorted poses that convey a sense of restless energy, and Boy in a Sailor Suit is no exception. Executed in a delicate mix of gouache, watercolour and coloured pencil, the 1914 portrait depicts an adolescent whose twisting posture suggests that he might run off at any moment Estimate: £1,000,000-1,500,000 5 March, London | | | At first glance, the 1994 work Treppenhaus (Staircase) looks like a picture of the inside of an austere building. But in fact, following the usual practice of the German conceptual artist Thomas Demand, it is a photograph of a life-size model he built out of cardboard — in this case, a recreation from memory of a stairway in the school he attended as a child Estimate: £12,000-18,000 until 12 March, Online | | | This ‘Leopardo’ chest of drawers, dating from around 1960, is by the Milanese designer Piero Fornasetti, who had come up with the original model a few years earlier for the living room of his family home. It is an ingenious design, with the curved front giving the leopard an almost alarming sense of volume and movement as it slips silently through the golden foliage Estimate: $12,000-18,000 until 11 March, Online | | | The exceptional skill of Henri Fantin-Latour as a painter of flowers and fruit is on show in this still life from 1878. Alongside the pink and white roses is a bowl of strawberries rendered with such realism — in the play of light on their surface and the variation in colour from pale green to deepest red — that the viewer is tempted to reach out and take one Estimate: £60,000-80,000 7 March, London | | | | |