ElfGuard - A Fantasy Adventure Novel with Epic Battles and Magical Realms

Create a fantasy book cover for a novel titled "ElfGuard." Feature a brave elf warrior with green eyes and mid-parted hair, dressed in green and silver armor, holding a gleaming sword. The elf stands in a dense, ancient forest with sunlight filtering through the tall trees. The background shows a contrast between the vibrant forest of ElfGuard and the dark, foggy, desolate landscape of the Dark Realm, with a dim moon and swirling black dust. The title "ElfGuard" should be prominently displayed at the top in an elegant, stylized font. Include the author's name at the bottom in a smaller, complementary font. Add subtle elements of light and dark magic, like glowing runes around the elf and dark shadows near the edges. The overall design should evoke a sense of epic fantasy, adventure, and the clash between light and dark forces.