From Wikipedia:

Maxfield Parrish (July 25, 1870 – March 30, 1966) was an American painter and illustrator active in the first half of the twentieth century. He is known for his distinctive saturated hues and idealized neo-classical imagery.

Parrish's art features dazzlingly luminous colors; the color Parrish blue was named in acknowledgement. He achieved the results by means of a technique called glazing where bright layers of oil color separated by varnish are applied alternately over a base rendering (Parrish usually used a blue and white monochromatic underpainting).

He would build up the depth in his paintings by photographing, enlarging, projecting and tracing half- or full-size objects or figures. Parrish then cut out and placed the images on his canvas, covering them with thick, but clear, layers of glaze. The result is realism of elegiac vivacity.