heres my 2p, take it or leave it…
really nice work. on the eyes. I think the problem stems from the lack of symetry, although none of us have symetrical eyes, the shape of the openings on yours is just a little too asymetrical. on the left eye (looking at the image so her right) consider making the area near the nose more closed and opening up the area nearer the outside, this will make it more like the other eye, and I suspect solve any problems.
the face is superb, strong yet feminine, a hard thing to do, esp when so many people go for asthetic beauty, its got more character and therefore loks more real to me.
great job