A majestic unicorn walking through the forest

Majestic unicorn with regal demeanor, adorned in an ethereal, glowing coat, its spiraling horn shining with a soft, luminescent light, as it walks through a mystical, primeval forest, the trees towering above, their gnarled branches twisted in a canopy of dark, emerald green, dappled with flecks of golden light filtering through the dense foliage, casting intricate, lace-like shadows on the forest floor. Masterpiece 8K resolution dark fantasy concept art, reminiscent of Greg Rutkowski's sweeping, cinematic landscapes, with dynamic, hyper-realistic lighting, showcasing a subtle, yet striking, play of purple and yellow complementary colors, evoking the mystique of Alphonse Mucha's Art Nouveau masterpieces, while incorporating the eerie, dreamlike quality of Jordan Grimmer's digital art, with the level of detail and realism typically found in Unreal Engine environments, and the deep, rich colors of a high-end, volumetrically-lit splash screen art piece, trending on Artstation.