Girl in a Hammock, Winslow Homer
Link is to a page from which you can access a large image on Wikimedia Commons. Original is in the collection of the Colby Museum of Art, which also has a zoomable version.
I haven’t had the pleasure of seeing the original. The Wikimedia version may be a bit light, but my instincts tell me that the museum’s version is too dark, as are many images that museums post of works in their own collections.
While not the subjects for which Homer is best known, his relaxed, seemingly casual observations of everyday life are often among my favorites.
I love the way he has used halos of light here; not only the light green of the sunlit grass against the dark of the figure and the hammock, but within that, the brighter halo of the almost white dress as it hangs off the edge of the hammock and catches the sun.