Ultra-realistic Renaissance-style painting of Emperor Constantine the Great, mid-aged Roman ruler, three-quarter view, based on classical statues and busts. Distinctive features: broad face, strong jawline, pronounced brow, large expressive eyes, slightly hooked nose, solemn and commanding expression. Wearing imperial Roman tunic and cloak (paludamentum) with subtle embroidery, optional diadem or crown. Warm, natural skin tones with visible pores and subtle imperfections. Dramatic chiaroscuro lighting from upper left, creating deep, realistic shadows and highlights. Background: muted dark studio with faint classical architecture, columns, or imperial motifs. Painterly texture in clothing, lifelike metallic sheen on crown and armor. Style inspired by Rembrandt, Titian, Raphael; blend heroic Renaissance idealization with historically accurate facial features. Noble, authoritative, timeless mood. See more