A Melody John William Godward (1861-1922)

The picture has something of this: woman, people, outdoors, wear, man, daylight, leisure, nature, sit, side view, relaxation, portrait, two, enjoyment, fair weather, water, girl.
Perhaps it’s a painting of a woman in a pink dress sitting on a ledge with a flute in her hand and a dog on the other side of the painting.