These long summer days with lovely bright light remind me of Plique-à-jour jewelry. This enameling technique used in jewelry during the Art Nouveau period was popular, and used by such artists as Rene Lalique.
Plique-à-jour is French for "letting in daylight." The enamel was applied in cells, but without backing, so that the light can shine through the transparent or translucent enamel.
It has the effect of stained glass and is very difficult technically.
Here are some beautiful examples by Rene Lalique:
Dragon Fly Woman
Another Dragon Fly