There is a tension between the internal "tender" feeling of insecurity and the external "polished" image presented to the world.
Adolescence is often viewed as a "gallery" of firsts—first heartbreaks, first identities, and the first real looks at the adult world. It is "tender" because it is a period of raw sensitivity where every experience leaves a lasting mark on the canvas of a person's character. 1. The Vulnerability of Becoming tender teen galleries
Focus on the "tenderness" of the developing brain and the impact of social mirrors (the gallery of peers). There is a tension between the internal "tender"