La danse (also known as Bacchante) is an oil painting created circa 1906 by the French artist and theorist Jean Metzinger (1883–1956). Bacchante is a pre-Cubist or Proto-Cubist work executed in a highly personal Divisionist style during the height of the Fauve period. Bacchante was painted in Paris at a time when Metzinger and Robert Delaunay painted portraits of one another, exhibiting together at the Salon d'Automne and the Berthe Weill gallery. Bacchante was exhibited in Paris during the spring of 1907 at the Salon des Indépendants (No. 3460), along with Coucher de soleil and four other works by Metzinger.
It's not a mosaic? That's really cool. I don't think I've ever seen a painting executed this way.
Right, oil paint. And, yah, really neat!