A formidable Byzantine empress from a fictional 11th century empire stands on a marble palace balcony during a spectacular total solar eclipse, wearing layered purple and gold imperial robes with intricate Byzantine cross and floral embroidery and a towering golden gem-encrusted crown with dangling pearl veil, her long dark hair adorned with gold hairpins and ruby beads, gripping a sacred golden cross scepter, wise transcendent expression, dramatic cool silver eclipse illumination contrasting warm golden torchlight from ancient bronze braziers, rich details of golden mosaics and marble balustrades, oil painting texture with digital precision, powerful dignified three-quarter composition against epic dark eclipse sky with solar corona and emerging stars, 4k hyperdetailed digital art