This image depicts a mesmerizing, fantastical underwater city scene glowing with vibrant, neon colors primarily in shades of blue and purple. At the forefront, diverse bioluminescent flora resembling mushrooms and coral illuminate the surroundings with their ethereal light. The architecture in the background mixes organically with the environment, featuring structures that resemble both traditional buildings and fantastical elements with flowing, curved shapes. There are also glowing pathways and staircases that interconnect the various levels and buildings. Above the city, filtering through the water are rays of light which highlight the detailed textures of underwater life and structures. The entire scene radiates an enchanting, otherworldly essence, resembling a living, breathing entity under the ocean's surface, teeming with magic and life. The composition brilliantly captures an atmosphere of depth and mystery, pulling the viewer into this serene yet vibrant underwater world.