Contouring is hip these days and yes, it is a good thing to do. The point, however, is to shape your natural face, hide some imperfections and let your best parts stand out. Having just seen some contouring videos on youtube, I absolutely warn you not to try to look like someone else. Those girls used tons of make up, concealer, camouflage and what not. You can do that when you are on stage as an actor. You should never ever do contouring for your private life like that. Not only does it look completely unnatural (it is not you and people will be surprised once that crap comes off), it is simply disgusting. Nobody should were that much stuff on her face. Besides it sure is not good for your skind or your body as a whole to put on so many products with I don't know how many chemical substances in them.
The Body Shop: http://www.thebodyshop.de/
Alverde Naturkosmetik: http://www.dm.de/cms/servlet/segment/de_homepage/alverde_home/;jsessionid=1B759F668B6F612EA949B5C226C4DCEA.hpworker3
Yves Rocher: http://www.yves-rocher.de/control/main