Mysterious Gothic cathedral, dark mysterious atmosphere, eerie twilight shadows, rugged stone walls, pointed arches, ribbed vaults, flying buttresses, intricate carvings, ornate stained glass windows, mystical symbolism, rich jewel-toned colors, deep blues, emerald greens, crimson reds, golden yellows, warm candlelight, dramatic chiaroscuro, high contrast, subtle texture noise, realistic weathering effects, ambient occlusion.