The human face is a wonderful part of the body - complex, changeable yet constantly recognisable; a window to character, moods and emotions. Your face represents you as a person in a way that say your elbow or your belly button can't do! It's no wonder that only a photograph of your face is required to identify you on a driving license or a passport.
In a caricature certain parts of the face are changed or distorted, usually in a fairly mild way, so that the likeness of the person is emphasised in certain prominent aspects. For example a big nose is made bigger, or small eyes are made smaller, a round face is made rounder, a big smile is made broader, beautiful eyes are made more beautiful, and so on. The trick is in getting the true likeness of the person to shine through the distortion. It is when someone says "Wow that looks so much like him!" but at the same time accepts it is not exactly a photographic likeness!
My name is really Peter, but please call me Pter - I like that alternative spelling. There are two many Peters in the world, but just one Pter as far as I know!
I see it as a great honor for me to be able to take liberties with something as important as your face and produce a work of art that hopefully brings a smile to your face when you see the finished result!