The rest of the body has been commented on so Ill wait for an update before i comment on the body.
The main differences betwen men and womens faces are the jaw lines, cheek bones structure, lips and nose. knowing more about this would really help you feminise the model I feel. I think you would improve the face a lot if you worked on the jaw line first of all. Women have thinner jaws than men so I think bringing it in a bit would help, also slimming the nose. Filling out the lips and making them fuller would also help a lot. I think when you have that sorted It will be easier to correct the cheek bones, which could be more delicate.
The red lines suggest the areas you might move, and the arrows show the direction obviously. Im not saying that this will fix your face, it might look horrible! These are just suggestions to think about. [/disclaimer :P]