I like how they have elegant hairstyles. Up until recently, they have led privileged and luxurious lifestyles. Now, they have been stripped naked, denying them the pride they were provided by their expensive clothing, as they are led to a lifetime of slavery and servitude. They are displayed in public, naked, as they no longer deserving of self respect, and some of them show signs that they have received a whipping, for their first ever time, on their pampered assess. The imposing men, holding spears and sporting erections, that surround and tower over them, are a signifier of what their future holds.
I think this is how slaves should be led. It seems unnecessarily humiliating, but that is what a slave should feel deserve she deserves.