Essentially French, though of Celtic Brittonic or Breton heritage as these people exist in Brittany, France, Alfred Guillou had his painting debut in 1868. About this time, Guillou and other painters formed the Concarneau Art Colony near Pont-Aven, France, attracting painters such as Charles Cottet and Paul Gauguin. A prime example of Guillou’s penchant for depicting the lives of fishermen, Guillou painted Goodbye! a decidedly romantic composition which has become famous in Brittany and around the world.
A bit more info on the piece: this is a father giving a last kiss to the body of his son he found during a shipwreck.