La Bascule (The See-saw), Jean-Honoré Fragonard, oil on canvas, roughly 30 x 39″ (75 x 99 cm), in the collection of the Louvre, currently on display at Musée Fabre, Montpellier. Link is to the Louvre’s page, which has zoomable and downloadable images.
This painting and another by the French Rococo artist were recently acquired by France after having been thought missing for years.
Fragonard is sometimes dissed as frivolous and pandering, but I quite like him — particularly his drawings. Here, though, the elements of his painting style I most admire are present: his soft, atmospheric landscapes, theatrical lighting and playful compositions.
Link: La Bascule, Louvre