Chân Dung Khắc Axit Đơn Sắc Tối

Dark monochrome illustration based on the subject in the reference photo, vintage etching and classical woodcut engraving style. Detailed hand-drawn ink line art, intricate crosshatching, and scratchboard textures. Realistic anatomy with stylized sharp contours, fine linework, detailed wrinkles, beard strands, and textured surfaces. Dramatic shadow lighting with deep blacks, high-contrast muted blue-gray cold palette, gothic dark fantasy atmosphere, reminiscent of an antique book print.