A striking portrait emerges depicting a woman, seemingly ageless, with the ethereal grace of a wood elf. Her skin, though pale, holds a subtle green tinge, hinting at the corrupting influence of her necromantic magic. Her eyes, a piercing emerald green, reflect an unsettling intelligence and power. Long, flowing auburn hair, streaked with unnatural green, cascades down her back, partially obscuring a finely crafted, dark leather robe adorned with intricate silver embroidery depicting skeletal figures entwined with thorny vines. The robe itself shows signs of decay, mirroring the green rot that subtly clings to her skin and clothes.

Her hands, slender and elegant, are adorned with several rings, each pulsing with a faint, sickly green light. One hand rests gently on the skull of a raven, a familiar perched on her shoulder, its feathers similarly tinged with green decay. The other hand holds a slender, ornate staff, crafted from dark wood, topped with a skull that seems to writhe with barely contained energy. The staff radiates a faint, chilling aura, reflecting the power she wields.

Beside her stands a skeletal companion, a towering figure clad in tattered, once-fine clothing. The skeleton's bones are partially covered in a greenish-black mold, matching the decay evident on the elf. Its empty sockets seem to glow with an eerie inner light, mirroring the elf's eyes. The skeleton's posture suggests loyalty and obedience, a silent guardian to its mistress.

The background is a dimly lit, overgrown forest, the trees gnarled and twisted, their leaves a sickly yellow-green. A faint green mist hangs in the air, swirling around the elf and her companion, enhancing the overall sense of decay and necromantic power. The overall color palette is dark and muted, with the sickly green of the magic serving as a stark contrast, highlighting the elf's mastery over death and decay. The style is a blend of realism and fantasy, emphasizing the details of the elf's features and clothing while maintaining a slightly painterly, almost ethereal quality to capture the essence of her necromantic power.