It's a picture by William Rimmer entitled:
Evening or The Fall of the Day

Zeppelin reference:

The famous Swan Song symbol that Zeppelin adopted as the logo for their record label was borrowed from an 1851 oil-on-canvas painting by William Rimmer entitled "Evening Fall Of Day." The figure in the painting is the Greek sun god Apollo. The painting is not, as some people would have you believe, of Icarus or Daedalus. These two are also figures from Greek mythology. Daedalus is, according to legend, supposed to have crafted a set of wings from feathers and wax for himself and Icarus which they could use to escape from their prison on Crete to freedom in Greece. Unfortunately, Icarus being the younger of the two thought it might be a lark to fly a little higher, and flew too close to the sun which melted his wings and he plunged to his death in a sea, which is still known as the Icarian sea. Icarus' first flight was also his swan song. Daedalus also designed the labyrinth on Crete for King Mino's minotaur, which was the reason for his imprisonment, because he alone knew the secrets of the labyrinth.