Use arrow keys to move the camera or activate the joystick from the menu.
You can zoom from the menu or press keyboard keys "Q" and "A".
To change the number of pieces select the horizontal and vertical amount from the menu and then press "Create".
Equestrian Portrait of the Duke of Lerma, Rubens
The Wave, Gustave Courbet
The School of Athens, Raphael
Roman Fish Market, Arch of Octavius, Albert Bierstadt