Here comes the spoiler: according to this article, it was created from photos of the subject and her family relatives who shared most face similarities. The photos were then animated and morphed together. Like the article points out, the animation still falls within the uncanny valley, but pause at any time and all you see is an real face.
Noah Kalina has been taking a self portrait every day for over twelve years, and uploaded yesterday on Youtube a new time-lapse video of this work in progress. There are a couple of such videos on Internet, but this one is the longest time span I am aware of. During seven minutes, you can not only see how his face evolves as he ages, but also get a glimpse of his outfit style as well as his professional and personals lives.