A woman walking through a forest at night with a full moon

"Generating an intriguing and atmospheric illustration for the cover and back cover of my horror thriller book. The scene is to depict a dense haunted forest at night, where the dim moon casts a pale light over the gnarled, shadowy trees. In the center of the image, a lone figure - the protagonist of the story, a young girl - is seen from the back, walking among the trees with a flickering lantern illuminating her path. The environment around her should suggest a sense of imminent danger and mystery, with shadows stretching out and indistinct elements lurking in the darkness. Colors should be somber and cool, with a focus on palettes of blues, purples and grays to create an eerie and intriguing mood."