Ken, this is extremely good. I'd be tempted to reduce the overall reflections in her eyes, and increase the size (not the intensity) of the bump spots (ie. reduce the "scale" on the procedural bump - I found a scale of about 5 with a turbulence was good).
My latest settings for iris, sclera and pupil on V4 is glossy : roughness 0.001, filmwidth 0, specular (map at power 0.1), bump = turbulence power 0.05, scale = 5, 5, 5.
But I'm sure there are many ways to do it.