Envision a fantastical city woven seamlessly into the towering trees, its wooden structures exuding a merger of medieval and fantasy architecture. As the sun sets, casting a warm glow across the scene, a colossal enchanted crystal floats majestically above, its luminescent beams cascading through the foliage and illuminating both the city and the surrounding forest. The atmosphere brims with a magical aura, captured in a digital painting that bathes the environment in vibrant oranges, purples, and deep greens, encapsulating the wonder and serenity of this arboreal metropolis.