What once started off as a spec project for designer Marco Sodano has now become a real campaign by ad agency Geometry Global (Hong Kong). The pixelated execution is part of Lego's Imagine campaign and shows that "every child with Lego can become a great artist like Da Vinci and Vermeer."
See the ads below:
American Gothic, Grant Wood

The Son of Man, René Magritte

Self Portrait, Vincent van Gogh

Mona Lisa, Leonardo da Vinci

And these were the designer's original concepts before the idea was executed into an official campaign:
Lady with an Ermine, Leonardo da Vinci

Girl with a Pearl Earring, Johannes Vermeer

You can follow Marco's work here.
H/t Adweek