A mysterious female knight in darkened plate armor with a raven-winged

A mysterious female knight in darkened plate armor with a raven-winged bevor, standing in a candlelit cathedral. Her visor is lowered, luxury only piercing eyes, while her gauntlets rest on a cool flanged mace. The stained glass windows cast colored shadows on her tabard embroidered with a white skull. Dark medieval aesthetic, 8K, Caravaggio-style chiaroscuro