Hmmm... I suppose. But do you mean his left (the one that's just barely off the edge)?
I was referring mainly to the right eye, where there seems to be almost a direct transition from the off-white to the green. This ties in to the shadowing, because with a few more shades of grey at the edge of the eye it could look better. (But I don't always know what I'm talking about...)
When I mentioned a stripe at the bottom left, I was talking about that bright, one-pixel wide line right before the outline below the mouth.
What I said about the "beard" was not anything to change, merely an observation on the way the colors were separated.