33)
Let's give her some mouth, shall we? A couple of edgeloops and an inwards extrusion, created the same way the eyes were gives us a start.

34)
The outer edgeloop forms the lips.
_
note:
I prefer to model the lips slightly parted but with teeth shut (jaws in neutral state) because it makes it easier to select the vertices of the upper and lower lips when weighting or creating morphtargets. Others prefer to model them shut because it looks more natural...that is entirely up to you.

35)
Before we continue on the lips, lets take care of that offending pinch on the cheek. We remove two rows of edges and redirect the row coming from the eye down to the neck by inserting an edge

36)
With some more edgeloops added we have some more vertices to form the sides of the mouth as well as rounding off the top of the head.

37)
We move some vertices to smooth everything, et voila! On to the mouth again

38)
We add more loops to form the lips
_
note:
The upper lip slightly overlaps the lower lip on the sides and creates a small fold there. Not doing so often results in a "sausage mouth"...or something that looks stuck on, like a Mr. Potatohead toy...
No offence if you have such a mouth.
Creating that little fold helps when forming a smile too.

39)
Again a narrow edgeloop is added to sharpen the edges.

40)
Now we will start on the crease that goes from the sides of the nose down to the edge of the lips. We add a row of edges that conveniently also help us smooth the chin.
Another row is inserted from the offending tri-face at the eye down to the chin which will help round off that fold, get rid of the tri and smooth the chin. Some excess edges are then removed.

41)
Here is a closeup of the edges as they flow around the nose. The absence of tris prevents any odd pinches in an area that will recieve alot of abuse when animated.

42)
We are getting close to the end. All that's left is to model an ear and attach it. For this we will delete some faces.

43)
...and there we go. The tri-faces aren't that beatiful to look at but with some careful placement they won't cause any trouble since this area is hardly animated anyway. You could of course also add more loops to get rid of those but I'd rather keep my mesh as light as possible.

44)
And now starts the fun part: detailing!
I added some more rows for the folds on the forehead and between the eyes for frowns, sharpened the detail around the eyes and generally messed around with the mesh until I was happy. I also added eyelashes made out of single planes that can later on be opacity mapped. I modelled the inside of the mouth as well...maybe something to add to a future tutorial.
The resulting 5+ sided faces seemed to work fine here so I let them be.

39)
For texturing purposes I like to close the eyes since it prevents stretching.
And so we are done!

If she's lucky she might even get a matching body!
Any additions, questions or corrections are much appreciated
so if you feel like, please email me at
wiro@secondreality.ch