Double Take

These amazing oil paintings by Ukrainian artist Oleg Shuplyak show remarkable double images hiding behind dramatic scenes and tranquil landscapes.

Through carefully placed objects, characters, colouring and shadows, a second image is cleverly concealed within the first. Can you spot them?

Leafing you in disbeleaf: Two birds, two very different techniques in creating them.

Evolving picture: On The Origin Of Species author Charles Darwin is formed using a brick archway, a country scene, a lady reading and a mysterious cloaked figure.

Double Dutch: This painting shows two portraits of post-impressionist Vincent Van Gogh, one of which is used to create the nose of the main image.

Mind games: This painting, titled Voyeur, shows Sigmund Freud, the founder of psychoanalysis, peering over a lake.

Historical references: Marauding Russian tsar Ivan the Terrible comes through in this violent scene.

Oleg Shupiyak Self-Portrait.

Alexander Vasilyevich Suvorov, the fourth and last generalissimo of the Russian Empire who died in 1800.

Imagine: Beatles legend John Lennon emerges through this clever montage of images by Ukrainian artist Oleg Shuplyak.

Here's looking at you, kid: Surrealist Salvador Dali, a fan of optical illusions himself, has now become one.