Yes, "4 eyes".
I drew one eye, in pencil, 100 years ago in college.
Dr. Shurtleff said it wasn't correct, but it was appealing.
In the mid '90's I studied computer art at UCI.
I dug up the drawing to digitize and colorize.
Then as I learned the computer, I surmised ...
if one eye was appealing, four had to be better?
Just for fun, I ran the eye through PS filter gallery.
The above is crosshatch.
This is graphic pen.
This is sprayed strokes.
And, this is ink outline.