Chân Dung Phác Thảo Mực Kỹ Thuật Thiên Thể

A detailed, hand-drawn illustration in a technical ink sketch style of [a young man looking upward] with a hopeful and intense expression. His face features fine cross-hatching that emphasizes facial anatomy and emotional depth. Tousled, dynamic hair rendered with precise ink linework. The portrait is framed by [golden geometric patterns, celestial rings, and constellation-like lines], blending scientific diagram aesthetics with a mystical, spiritual aura.