More Da Vinci Mirror Image Fun

Since I evidently don't know that I need to get some sleep, I thought I'd try a few other Da Vinci painting's overlay mirror images. Sadly to say I got nothing on the first few tries, including the Mona Lisa. However, I'm almost ashamed to say what this looks like to me in the famous Da Vinci red chalk self portrait. Original Image, click on the image to enlarge.

Mirror Image overlay

Is that an "All Seeing Eye" that forms in the center, or do I just need to go to bed?