imageA blog called The Pinoy Freud puts it this way:

Sometimes I wonder with all the images of Jesus cropping up, what was really the basis?

And to think that when the Shroud of Turin was found, the image resemble the face of Jesus that we know.

So again, I ask, what was the basis for Jesus’ face?

Nobody knows.

But for convenience, the so-called "faithful" need to see an image to put their attention to.

Thus, whether proven or not, the Shroud of Turin, I believe was the model of Jesus’ face.

The Pinoy Freud: What did Jesus look like?