Create a highly detailed and realistic depiction of a White Dragon God (Hakuryu), with a 9:16 aspect ratio. The dragon should be portrayed as a majestic and ethereal being, with a long, sinuous body covered in shimmering white scales that reflect light like precious gems. The color theme should incorporate subtle hints of gold to symbolize wealth, prosperity, and divine purity. The White Dragon God should have a wise and regal expression, with piercing blue or silver eyes that radiate intelligence and compassion. Its face should feature long, flowing whiskers and elegantly curved white horns, symbolizing its ancient wisdom and power. The dragon's claws and teeth should be sharp and pure white, representing both its strength and its role as a protector. Surround the White Dragon God with a luminous aura, glowing in soft white and pale gold, emphasizing its divine and otherworldly nature. The background should include misty clouds, ethereal light, and elements of water, such as a cascading waterfall or a serene lake, to highlight the dragon's connection to purification and renewal. A subtle rainbow or beams of light reflecting off the dragon’s scales can be added to enhance the mystical atmosphere. The overall scene should evoke a sense of awe and reverence, with the White Dragon God appearing as a benevolent guardian and a symbol of purity, protection, and prosperity.