The Mona Lisa is by far my favourite portrait painting.
There is a great sense of truth and oneness in the painting.
Notice how the horizon is lower on the left, it is as though Leonardo was trying to paint more than just reality as we see it.
Leonardo used a technique called the Leading Eye Technique. The head is slightly off centre and one eye is in the centre of the canvas.
This is a technique I try and use in my own portraits.
Her hands are rather large and manlike I believe this is because Leonardo used a mirror and copied his own hands. But I have never read that he did this and she might have just been born with big fat hands.
In this drawing I have tried to achieve an exact copy. But this is always impossible, she is scratching her wrist with her finger, the drawing is 10" by 15"
Drawing of a girl in pencil
by Nick Harvey.