With the exception of Palma Vecchio’s Madonna, St Peter and a Donor, Marées himself selected the paintings he wished to copy. To Schack he claimed that his choice was dictated by practical constraints, but in fact he singled out works that accorded with his own artistic temperament. Raphael’s portrait of an unidentified woman with a veil fascinated him by reason of its subtle hues and the compelling warmth of the sitter’s gaze.