If you want to listen to Arbus talking about her work, here's a rare audio interview
Diane Arbus would have been 100 years old this year.
www.wnyc.org
Expressing their opinion about the works they are looking at is what bad critics do. Expressing ideas about the work they are looking at is what good critics do.
A good critic is trying to understand, and good criticism is about this quest, sometimes about its difficulty, and sometimes about its failure.
Sometimes it does
start with an opinion. But an opinion only has value if it is informed — clearly not in this case —, and only if used as a starting point for a reflexion.