 He also painted a portrait of the parents of Godert de Ginkell, 1st Earl of Athlone, Comenius, Maarten Tromp, Charles II of England, Colonel John Hutchinson, Adam Olearius, three times Christina of Sweden, Queen Sophie Amalie of Denmark, Jacob Backer, Jacques Specx, Lucia Wijbrants, Dirck Kerckring and twice Giuseppe Francesco Borri, an eye doctor, charlatan and alchemist.Ovens' best-known work is the "Blue Madonna" in Schleswig Cathedral.A self-portrait may be seen in the Laurentius-Kirche in Tönning.