which anime would you consider as a piece of art ?

[Claraviolet]

There are many such anime for me
Like Death note, Full metal alchemist brotherhood etc.,
What about you guys? What are the anime you believe are exceptional?

 

[Grungie]

Boku no Pico

 

[Demon_Skeith]

Hiiro no Kakera and Puella Magi Madoka Magica.