Still looks a bit misproportioned. What screen resolution are you using? Maybe your models are appearing elongated on your screen?
If you’ve never looked at body proportions before, you should pop down your local book store and see what they’ve got in the Art Theory section. All you want is a beginner’s book on drawing the human body, because that will show the classic ‘canons’ … proportions based on the distance between scalp and chin. I’ve put links to a couple of small versions below. Good luck!
http://underdog.dreamcomics.com/english/canon.htm
http://www.wetcanvas.com/ArtSchool/Drawing/HumanForm/Lesson2/