Naomi Watts has the kind of body of a woman that is concerned about working out her core muscles. Observe her body and she looks very strong but doesn’t seem to be worried to have the kind of 6 pack abdomen.
Chloe’s stomach doesn’t have excess fat and looks split in the middle. We can also observe clearly the difference between her waist and hips. This is a very feminine and curvy figure. Maybe what personal stylists call hourglass body.
There are other stomachs that are flat and do not have any excess fat but they don’t look as tight. I wonder if it is the kind of exercise or if it is that those ladies (especially those that are famous) get their tummies stretched and tight with a surgery. Have a look to Kimora Lee’s abs that are nice and flat but not very tight.
Kate Walsh shows another type of stomach with a 6 pack.
Mila Jocovich has a concave stomach, maybe helped by a surgeon because she has got kids and there is no sign of a previous pregnancy in this stomach.