Dark mysterious atmosphere, dimly lit stage, rich velvety curtains, ornate gold accents, crimson red walls, midnight blue ceilings, foggy misty effects, eerie flickering candles, heavy metal doors, stone Gothic arches, mystical purple hues, lavish black chandeliers, dramatic spotlights, intense strobe lights, macabre skull decorations, spider web patterns, old mysterious artifacts, haunted mansion inspirations, dark romantic ambiance, Victorian-era influences.