A Vase of Flowers, 1716, Oil on wood, 31 1/4 x 23 3/4 in. (79. 4 x 60. 3 cm), Paintings, Margareta Haverman (Dutch, active by 1716?died 1722 or later), Several female artists of the Netherlands specialized in flower pictures, the best known being Rachel Ruysch (1664?1750). Despite his secretive nature, Jan van Huysum accepted Haverman as his pupil in Amsterdam