In Laurinda, the photograph of Mr. Sinclair, the former principal, symbolizes the old values and traditions of Laurinda Ladies' College. It shows the school’s past, which was full of strict rules, privilege, and a focus on being better than others.
The photo is displayed in the school as a reminder of the power the school has always had over its students. Even though Mr. Sinclair is no longer the principal, the school still follows the values he set, like exclusivity and tradition. For Lucy, who is a scholarship student, the photo also represents the challenges she faces in trying to fit into this world of privilege.