Alright, I'm sorry for that last comment.  It was mean, and I didn't know you were being serious.  But, after reading Male-M3dia's comments, I see that you are really looking for advice.

You obviously know how to move points around.  In the case of the breasts, it would help you to recognize that they have lost the round, smooth edge loops.  This would not render well, unless it was subdivided, and even then it would end up looking a bit lumpy.  Just try to move the points that form circles on the breasts so that they are round once again.  That would help in that area.

I agree with Male-M3dia about the face... she looks angry rather than feminine.  If a character is going to have a bust like that (I'm thinking Pamela Anderson, or Chesty Galore), you want to have a nice, soft feminine face.  Just try making your morphs a bit more subtle when moving polygons around.  A little bit goes a very long way.

I hope you will take this in the helpful spirit is intended.  My poor humor above was uncalled for, and I apologize.

Good luck :)  Oh, one more thing, since you are using ZBrush... try masking out the eyes and teeth/gums, etc so that they are not affected, then use the Deformations/Polish by features.  Just a small number, like maybe 5.  See what that does for you.  If you don't want the polish effect to go on the whole figure, just mask out the parts you want left alone.