Trees in blossom from Sérusier, Bonnard, Waterhouse, van Rysselberghe, Nikolai Astrup and others.
Berkos
Born in Odesa, he settled to the north of Kharkiv, painting en plein air in a detailed Impressionist style. He had a particular love of wild plants.
The major problems in oil painting had been solved before the van Eycks. One was a reliable supply of solvent/diluent spirits.
The Eclectic Light Company 