Imagine a mystical space realm where a white spider horse gallops with grace through a dense forest, its eight legs gracefully carrying it over moss-covered ground. The sight is simultaneously horrifying and awe-inspiring, as the white horse's ethereal beauty is contrasted against its monstrous spider-like features. The horse's ebony eyes mesmerize, reflecting the light in a haunting and captivating manner. This breathtaking image, depicted in a vividly painted masterpiece, immerses viewers in the fantastical narrative of an otherworldly creature navigating a mysterious and enchanted woodland.