A dramatic full-body anime portrait of an adult elven demon queen in her late 20s standing in a powerful side stance and gripping a colossal greatsword with both hands with the tip planted toward the viewer. She has extremely long flowing white hair glowing in backlight with pointed elf ears and small curved black horns adorned with dark jewels on her head, pale skin, and glowing solid red inhuman eyes with a cold focused expression and a red jeweled earring. She wears an elegant black gothic battle dress with a fitted corset and open back and long flowing layered skirt with side slits, detailed gold embroidery, long black gloves, lace-trimmed thigh-high armored boots with buckles. Her weapon is a massive ornate greatsword with a molten cracked red crystal blade emitting bright red light and embers and white lightning arcs. Behind her looms a giant blood-red full moon filling the sky with floating sparks and embers and a dark reflective wet ground, intense red and white rim lighting on her hair and armor, epic dark fantasy atmosphere, ultra detailed hair and metal and magic effects, vertical composition with sharp focus on her profile and sword.