A striking woman with dark hair and a sinister smile, wearing elegant clothes adorned with subtle spider-themed jewelry. Her sharp, dangerous eyes glimmer with a hint of malevolence. Behind her, faint spider leg shadows flicker, hinting at her future transformation into a spider-like creature. The atmosphere is dark and mysterious, with subtle glowing highlights that reflect off her jewelry, enhancing her eerie elegance. The background features soft, shifting shadows that add depth to the sinister tone of the scene.