Using the shape of a hand and arm in this I think connects it to the photograph itself. In the photo, she is covering her face in her hands which makes you look more closely at the photo to wonder what is going on with it. I think it adds to the graphic a lot and makes the meaning of the picture pop more.
“Who taught you to write in blood on my back? Who taught you to use your hands as branding irons? You have scored your name into my shoulders, referenced me with your mark. The pads of your fingers have become printing blocks, you tap a message on to my skin, tap meaning into my body. Your morse code interferes with my heart beat. I had a steady heart before I met you. Now you alter its pace with your own rhythm, you play upon me, drumming me taut.” Jeanette Winterson