Looking pretty good. I know Likeness is never easy- but here are some crits if you are interested:
The nose seems to be a good start but unfinished- in the 3 quarter view it appears flattened.
The Jaw looks a bit thin- I think as it goes back toward the ear you might want to look at fattening up the face a little- also maybe look at fattening the face in general
The area under the eye- the bags of his eyes- seem wrong for Morgan freeman. There is a kind of upside down pyramid that sits under his eyes, and the wrinkles might be a bit over done (I guess it depends on the photo you are using)
The mouth looks maybe too short- not quite wide enough- it makes his lips have a strange expression.
The biggest issue I see- more asymetry. I see some- but I think the chin/mouth could use more.
Once again- I appreciate the challenge of this model- good luck, I think it is coming along nicely.
Craig