3D Model: An Ultra-realistic 3D Model Of A Byzantine Marble Statue, Depicting A Solemn Saint Or Emperor. The Sculpture Should Have Finely Detailed Drapery With Deep Folds, Carved Symbols Of Byzantine Crosses And Iconography. The Surface Of The Marble Should Show Subtle Cracks, Weathering, And Patina To Reflect Centuries Of Age. The Face Should Have A Serene, Iconic Expression, Inspired By Byzantine Art Style, With Highly Detailed Eyes And Beard (if Male). Lighting Should Emphasize Texture And Shadows Across The Stone Surface. PBR Materials, 8K Textures, Photorealistic Rendering, Suitable For Museum-quality Visualization.