One painting and one drawing

hermelin-da-vinci, originally uploaded by grijsz.

My all time favorite painting ever,... and I have seen the original, it was a fantastic moment...

Source:
http://www.zeno.org/Kunstwerke.images/I/1300034a.jpg

drawing-davinci, originally uploaded by grijsz.

One of my favorite drawings ever, also by Leonardo, a study for the Anghiari Battle Fresco

Source:
http://www.zeno.org/Kunstwerke.images/I/2200145a.jpg