How to get makeup like megan fox/ Adriana lima?

How to get makeup like megan fox/ Adriana lima?

I know the keep it natural, but how do they make their eyes look sooo amazing. how can i achieve their looks??
http://img87.imageshack.us/img87/5251/adrianalimafriends9big8ip.jpg
http://frappelattes.com/wp-content/uploads/2008/11/megan-fox-makeup.jpg