this shot fits the challenge well but since we can't see their faces, it might have been improved if they were standing closer, he was gripping her harder, etc. as a technical note, this looks a bit underexposed to me, with the hand too featureless and the whites too drab. still, a nice attempt!
interesting compesition, focusing on the hand on her back. i would have liked to see greater contrast in your b&w, so that the dress details really pop and his hand really stands out.