Gil Elvgren, Halloween night, mysterious dim lighting, full moon, misty fog, Gothic Victorian-era mansion, intricate stone carvings, grand staircase, dark wooden doors, creepy portraits on walls, spider webs, jack-o'-lanterns, gravestones, mysterious shadows, eerie atmosphere, subtle warm glow from candles, ornate iron fences, overgrown gardens, crumbling stone statues, old trees with twisted branches.