Create a cinematic dark-fantasy portrait of an adult couple inside an ancient Gothic cathedral. A knight

Create a cinematic dark-fantasy portrait of an adult couple inside an ancient Gothic cathedral. A knight in weathered black plate armor and a flowing crimson velvet cape kneels before his beloved, resting his forehead gently against her lap. His visor is raised, revealing his face in profile; one gauntleted hand holds a longsword angled downward, its blade resting across the polished stone floor.

His beloved sits on the edge of an intricately carved stone altar, wearing an ethereal ivory gown with a fitted embroidered bodice, off-the-shoulder sleeves, delicate lace, pearl details, and cascading translucent fabric pooling onto the floor. She bends toward him with a tender, sorrowful expression, gently resting one hand on his head and the other on his shoulder. Their body language conveys devotion, trust, and quiet longing.

Tall stained-glass windows cast diagonal shafts of cool silver-blue light through drifting incense haze. Hundreds of candles illuminate the cathedral with warm amber light. A softly blurred crucifix rises behind the altar. Deep red roses lie beside her, with scattered petals across the reflective floor.

Vertical 4:5 composition, full-body framing, knight in the lower-left foreground, beloved elevated at center-right, sweeping cape and gown filling the lower frame. Painterly photorealism, intricate armor engravings, realistic skin and fabric, dramatic chiaroscuro, volumetric lighting, restrained jewel tones, rich textures, romantic melancholy. Anatomically correct hands and natural proportions. No text, watermark, gore, or modern objects.