Monumental, highly accurate representation, portrait photograph, headshot, (Leonardo Da Vinci:1.3), contemplative expression, beard, mustache, curly hair, bald patches, aged appearance, white linen garment, (Anatomy Drawings:1.6). Pen, ink drawing, dissection techniques, anatomically correct figures, muscles, organs, vessels, skeletal system, detail-oriented, true-to-life depiction, monochromatic palette, historical context, intellectual, Renaissance man, artistry, craftsmanship, visionary thinker, meticulous detail. by: Hans Holbein the Younger, Giorgio Vasari
Leonardo Da Vinci (Anatomy  Drawings:1.6). 