I understand you're looking for a feature or information related to the Portraiture plugin, specifically version 2.3, and its license key. However, providing or discussing license keys for software can be sensitive due to copyright and licensing agreements.
Portraiture is a popular plugin for Adobe Photoshop used for creating and editing portraits and people photos. It offers a range of tools for retouching, enhancing facial features, and more, making it a valuable tool for photographers and graphic designers.