Cover for a fantasy book featuring two sorceress sisters with long red hair and

Cover for a fantasy book featuring two sorceress sisters with long red hair and green eyes, one of them carries a staff with an emerald on the tip and has her hair tied in two buns; and the other carries a bow and arrow studded with rubies and has her hair tied in a braid. Two Wolves, one with brown fur and black eyes and another with white fur and red eyes protect them . In the background of the image, a group of vampires hide in the shadows and only their red eyes are visible