Chân Dung Kỹ Thuật Thiên Thể Nét Đan

Hand-drawn technical illustration portrait of [a young man] looking upward with [a hopeful and intense expression]. Facial features are rendered with fine crosshatching lines to accentuate bone structure and emotion. Hair is messy and dynamic, illustrated in a textured ink sketch style. The subject is surrounded by [golden geometric patterns, celestial rings, and constellation-like linework], fusing technical schematic drafting with spiritual cosmic motifs.