Generate a fantastical fantasy tree with otherworldly features, showcasing bright, vibrant hues of dark blue, dark violet, and deep green. Ensure the design prioritizes aesthetics with smooth topology and maximum poly count for intricate detail. The structure must be fully connected, with no lingering detached artifacts, creating a seamless and cohesive appearance. Emphasize ethereal elements like glowing veins or shimmering bark to enhance the surreal, magical vibe while maintaining logical proportions and balance for visual harmony.