Olaf - her eyes look sensation. They could maybe still do with 10 units less blue (adjust in the diffuse_color node). They are also missing a shadow on the eyewhite from her top lid. Maybe raising (elevating) the main light might help with this - or you can plug a (1-AmbientOcclusion) node into the Tranparency of the eye trans material, and set the diffuse_color to black so get an AO shadow. Teeth should have 10 units less blue than green - and on the above there is 20 units less blue than green, which is why they look slightly green (eventhough they are actually slightly red). So reducing the green content of the diffuse_color of her teeth by 10 should get them spot on. Also - what are you using for specular on her teeth? They look a touch dry. Maybe try anisotopic - but you'll need a good tooth bump map to get the exact look. In the above Jessi mouth (which you've probably seen before), I halved the diffuse_value and plugged the texturemap for her teeth into the ambient - which has reduced the darkness between her teeth well, and given a bit of an sss/translucent look.

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