Dark Gothic: Moonlit Knight in Church

Dark gothic game character concept of a solemn knight in tarnished black plate armor standing beneath the arched stone ribs of a moonlit cathedral, long flowing tattered cloak, a single glowing amber sigil in the center of the chestplate, gauntleted hand resting on a greatsword planted in the cracked stone floor, cold blue moonlight streaming through a tall stained-glass window casting fractured colored light on the marble, heavy shadows masking the face under the great helm, oil-painterly thick paint strokes, desaturated palette of charcoal, slate blue and rusted bronze, oppressive melancholic mood, dramatic vertical composition, detailed medieval fantasy worldbuilding, 4k