Here is Louise Bourgeois's
pink marble woman turning into a frond - headed plant, and one of Raoul de Keyser's most airy blue abstracts; here is Karla Black's cellophane cloud hanging in one of the high Georgian windows, bearing green traces of the gardens beyond, and a thicket of marvellous historic paintings from the gardens» collection, showing palms and peonies to semi-abstract perfection.