Create an ultra-detailed, warm wide-angle portrait in the Japanese retro anime s

Create an ultra-detailed, warm wide-angle portrait in the Japanese retro anime style of the 80s and 90s, with a film grain effect and retro wave violet theme. The scene depicts a stunning woman with dark violet eyes, relaxing in a traditional Japanese onsen. She has a curvy figure with detailed light reflections and water droplets. Her body is mostly submerged in the water, with steam and natural rock formations providing modest cover. She leans back against a rock, her head resting on a rolled towel. The background shows a beautifully decorated onsen with natural hot springs and a serene garden, creating a peaceful atmosphere.