Pre-Raphaelites
Because it is a faithful representation of a work of art by an artist who died more than seventy years ago, I believe it to be in the public domain. The Pre-Raphaelites (Pre-Raphaelite Brotherhood, PRB) was a Victorian-era group, which started originally as an art movement and grew to include poets and writers. The paintings of the Pre-Raphaelites often featured an extremely high degree of realism (would now be called photorealism); religious and mythical themes; and pictures that explicitly told a story, or a part of a story.
Famous Pre-Raphaelite artists included William Holman Hunt, Dante Gabriel Rossetti, John Everett Millais, and Edward Burne-Jones. William Morris, founder of the Arts and Crafts movement, and art critic John Ruskin were loosely associated with the group.