The "topless" aspect typically emphasizes a stripping away of social armor, focusing on raw, human form rather than fashion or status.
In photography, using a reflection often represents a psychological split—the person we present to the world versus the one we see when we are alone. Heidy_Topless-Reflection-151.jpg
If you were writing a feature story on this specific piece, you could explore these angles: The "topless" aspect typically emphasizes a stripping away