Tips to make teenagers look more like teenager?

Ya, I agree that you really need to make teenagers very slim without looking bad/skeleton like otherwise they look old regardless. And tone down the bust/butts and less muscle definition. More or less fill them out "less" overall.

Basically I start with my adult sim then teen them, then shrink every part I can just a tad from shoulders to calfs and everything in-between.

Basically less of everything in CAS lol...