VERY nice! I couldn't read all 27 pages of commentary, but I noticed you got rid of most of that "crease" that everybody mentioned early on. There still seems to be a bit of creasing along the bridge of the nose, but I imagine you are working on that! One thing I do is soften ALL of the edges along the seam where the two halves meet (and I set the softness to the maximum value of 180 when I do). The crease still exists along the nose, and if you haven't already softened the normals, do give that a try!

Regards,

Lt. Jim
NYC