High-Fidelity Flash Selfie Portrait Prompt

An extremely detailed, technical prompt designed to generate a raw, high-fidelity portrait simulating an iPhone 17 Pro flash photograph. It uses 'Identity Lock' and 'Expression Sync' to ensure precise replication of facial features and expression from external references (A and B, which are implied), focusing heavily on epidermal physics, lighting (hard flash), and anatomical volume. Via YouMind OpenLab prompt library (MIT).