"The Kiss" - Gustave Klimt is his most famous work. He used oil paints and gold leaf as his medium. His inspiration came from the Byzantine mosaics he saw during a trip to Italy a few years before the conception of this work.
The Pink Peach Tree, by Vincent Willem van Gogh. Van Gogh intended the three orchard paintings, The pink orchard, The white orchard, and The pink peach tree to go together: a letter to Theo includes a sketch of the triptych he had in mind.