That looks like a buyer at the used dancer sale. Kris

or a buyer at the cattle market

I love seeing the next ones in line witness their fate.  It makes the image and anticipation of the girls all that more satisfying.

It appears that the young lady in the middle is a little flippant about the whole situation, but, her expression will change, I am quite sure.  At least, it would if I were doing the spanking.  The one on the right appears to have a HSOF about her, which is proper, and as it should be.