As for faces, Jubal had the most beautiful face Mike had ever seen, clearly and distinctly his own.  It seemed to Mike that these human females in Duke's picture collection could hardly be said to have grown faces as yet, so much did one look like the other in the face.  All young human females had much the same face - how could it be otherwise?  Of course he had never had any trouble recognizing Jill's face; she was not only the first woman he had ever seen but, most important, his first female water brother - Mike knew every pore on her nose, every incipient wrinkle in her face and had praised each one in happy meditation.