This paper,
Facial appearance is a cue to oestrogen levels in women, is getting a lot of
press right now. This tells us nothing new, there have been many, many, studies which show that there is a positive correlation between elevated estrogen levels and feminine (i.e., attractive) features. But check out the photos, isn't it striking how shaving a millimeter here and there can change things?
Update: The Royal Society has dynamically generated links from what I can tell...it should be fixed now.