In creative spaces (like digital art or character design), the term "piece" often refers to a completed work of art.
I've provided a few interpretations of your request, depending on whether you're looking for art, character design, or media featuring diverse identities. Artistic and Character Interpretations
You may be referring to a character concept (a "piece" of a larger portfolio) that emphasizes youthful, feminine features while celebrating gender-diverse identities. Modern Terminology
Various digital series feature "cute," youthful trans-feminine protagonists navigating daily life and romance.
For characters or individuals who sit outside the traditional gender binary. Literature and Media If "piece" refers to a written work:
There are many "pieces" written by young trans creators about their experiences with beauty, fashion, and self-expression.