Who is that "Tiny Head"

I thought by showing you a picture of my Niece, Amanda and my great niece, Olivia that would explain my little avatar.(Now retired) On Wet Canvas they call them "Tiny Heads." Olivia moved to Portland before her second birthday and now she is finally four. She has turned out to be my little painting buddy. Just for a generation map I have added an old photo of Amanda's mom sitting between my mothers legs. So now you have four generations in one post!