Rembrandt s Portrait of an elderly woman in a white bonnet

The reading and the lecture are both about rembrandt's portrait of an elderly woman in a white bonnet. The author of the reading feels that there are problems with the painting that suggest it could not be a work by rembrandt. The lecturer challenges the claims made by author. she is of opinion that those problems were true yet to recent conclusions.
First, the author argues that there is something in convenient about the way the woman in the portrait is dressed. The article mentions that she is wearing a white linen cap of a kind that only servants would put on ,but the coat she is wearing has a luxurious fur collar that no servants could wear and especially rembrandt known by his attention to details. this specific argument is challenged by lecturer. she claims that about fur color that x-ray analysis shows that pigment color of this portrait is not the original. Additionally, she says that those pigment put over the original about a hundred years after portrait was made to increase the value of it and to look formal for an aristocratic lady.
Secondly, the writer suggests that rembrandt was a master of painting light and shadow, but in this painting, these elements do not fit together. In the article, it is said that the face appears to be illuminated by light reflected onto it from below. but below the face is the dark fur collar, which would absorb light rather than reflect it. So the face should appear partially in shadow—which is not how it appears. The lecturer,however, rebuts this by mentioning that when added color removed the original color could be see. he elaborates on this by bringing up the point that simple light color appear and clothes reflect the light and illuminate parts of face that is why no shadow on face and it is original realistic light shadow.
Finally, the author posits that examination of the back of the painting reveals that it was painted on a panel made of several pieces of wood glued together. Moreover, it is stated in the article that usually rembrandt paint on panel of wood not like panel glued together in this way from several pieces of wood. In contrast, the lecturer's position is that rembrandt paint on wood panel ,but when fur color added this panel enlarge with wood pieces to make it valuable. she notes that rembrandt was using wood from same tree that he used to use in his other painting.