It has become something of a cliche to compare modern photographic compositions to Renaissance paintings, but that is what I thought of when I saw the image of the baby boy born on a crowded small boat that was rescued off the coast of Lanzarote this week. Granted, Renaissance painters were notoriously bad at babies, and with his wrinkled little face and his full head of hair, this baby is as real as it gets. But composition-wise, there is something in the twist of the torsos of all those exhausted people turning towards him and his mother, the arms outstretched,...