In this photo, it could be said that the pediatrician is easily identified by the stethoscope and hospital scrubs-  and the mother is easily identified as the person holding the child.
It does remind me, though, of the good practice of identifying persons by their position in the photo (e.g.,  Mercy Sr. Karen Schneider (left), a pediatrician).
Too often, I think, the person in the position of authority has been assumed to be the white person. This seems to me to be a manifestation of implicit racial bias.
Consistent identification, even when seemingly obvious, is a step toward overcoming implicit racial bias.