Tirzah Garwood (1908 – 1951), Springtime of Flight, 1950 Kettle’s Yard’s latest exhibition, Handpicked: Painting the Flowers, opens with what is perhaps its most famous artwork: Henri Rousseau’s ‘Bouquet of Flowers’ (1909-10). At first glance, the painting appears to be a straightforward depiction of its subject matter – a white vase holds flat green leaves,…