During this period, he painted the full-length portrait of Madame van Beresteyn (Louvre) and a full-length portrait of Willem van Heythuyzen leaning on a sword. Both these pictures are equalled by the other "Banquet of the Officers of the St George Militia" (with different portraits) and the "same militia in 1627" and "Banquet of the Officers of the St Hadrian Militia" of 1633. A similar painting with the date of 1639 suggests some study of Rembrandt masterpieces, and a similar influence is apparent in a group portrait of 1641 representing the regents of the St Elisabeth Gasthuis and in his 1639 portrait of Maria Voogt at Amsterdam.