Kensington Oriental art dealer Richard Marchant stepped down from the chairmanship after four years.
Mr Walker, right, is pictured with two new BADA Council members, Oriental ceramics specialist and writer Michael Cohen and London Victorian watercolour dealer Kaye Michie.
A third new Council member is second generation Lincolnshire furniture dealer John Hansord, while Burlington Arcade, W1 silver specialist Daniel Bexfield re-joins the Council.
