Salvator Mundi (1499-1510)- The painting depicts�Jesus Christ�in�anachronistic�blue�Renaissance�attire, making the�sign of the cross�with his right hand, while holding a transparent, non-refracting�crystal�orb�in his left, signalling his role as�Salvator Mundi�and representing the 'celestial sphere' of the heavens. It has set a record for the�most expensive painting ever sold�at public auction (US$ 450 million).�������� *Leonardo di ser Piero da Vinci (1452�1519) was Italian painter, draughtsman, engineer, scientist, theorist, sculptor, and architect. He gained notoriety for his notebooks, in which he produced sketches and notes on a variety of topics, including anatomy, astronomy, botany, painting, and palaeontology, even though his popularity primarily stemmed from his accomplishments as a painter. Only his younger contemporary, Michelangelo, has made a greater impact to following generations of painters than Leonardo, who is widely recognised as a genius and the embodiment of the Renaissance humanist ideal.�