Actually, there's a bit more to the distinction than the eyes and the nose.  Here's a list of the features I gave Natalie:

EYES
-   slightly enlarged
-   slanted
-   almond-shaped
-   eyelids thinned

NOSE
-   slightly narrowed nose
-   slightly widened ridge and bridge
-   somewhat deeper, more curved nose ridge slope
-   tip points a little upwards
-   shallowed (i.e. decreased protrusion from the face)
-   smaller nostrils
-   septum raised slightly and widened

MOUTH
-   bottom edge of lower lip raised
-   mouth narrowed and shrunk
-   top edge of upper lip raised slightly
-   fuller lips (i.e. thickened)
-   slight poutiness

OVERALL FACE
-   rounded
-   higher, slightly pronounced cheekbones
-   narrowed chin
-   higher-sloped jawline

I may be forgetting a few, but those are all the important ones.  In checking the code for my head INJ pose, I find that there are a total of 45 morph dials whose values change from the default.  Would you recommend using more morphs or intensifying the ones I've already used?

That morph animation is cosmically ironic, since I myself just dabbled in face morph animations for the first time last night.  I can't get any more advanced than something that just seems to fade rather than actually morph into another, though.