La belle ferronnière

La belle ferronnière, Leonardo da Vinci, 1490

St Jerome in the Wilderness

St Jerome in the Wilderness, unfinished , Leonardo Da Vinci, Vatican 

St. John the Baptist

St. John the Baptist, Leonardo da Vinci, 1516

Virgin of the Rocks:

Louvre version: 

Leonardo da Vinci,1486

London Version: 

Leonardo Da Vinci, 1508

Though it's argued the London version was painted by his apprentices and not Leonardo himself

John the Baptist

John the Baptist, Andrea del Sarto,1528

The Last Supper

The marvellous Last Supper, Jacapo Tintoretto, 1594

San Giorgio Maggiore at Dusk

San Giorgio Maggiore at Dusk, Claude Monet, 1912

Baptism of Christ

Baptism of Christ, 1475, Andrea del Verrochio, Leonardo da Vinci, Uffizi Gallery, Florence

Carl Gustav Carus

Carl Gustav Carus, Johann Carl Rössler,