We can’t stop looking at human faces. Can’t stop being interested in ourselves, our species. The BP Portrait Award, whose annual exhibition of winners and strong contenders can be seen at the National Portrait Gallery until 24 September, is full of humanity. It is, perhaps, the most humanist art prize in the world, an art award that specifically celebrates the painted human image and looks for modern heirs to the profoundly compassionate tradition of portraiture that includes Rembrandt, Velázquez and Lucian Freud. Read more.