Design a high-resolution image of a young woman in a retro diner, wearing vintage cat-eye sunglasses. The artistic style should be retro with vibrant, nostalgic colors. Use a mixed media approach, combining photography and digital painting. Set the camera aperture to f/1.8 for a dreamy, blurred background, with a shutter speed of 1/200s. Use a 35mm lens for a wider perspective. Lighting should be studio-based, with soft, even illumination to mimic the look of classic diner lighting. The background should include elements like checkered floors and neon signs, while the foreground focuses on the woman's face and sunglasses. Enhance the image with a duotone effect to emphasize the retro feel, motion blur for dynamic elements like a spinning jukebox, and frequency separation for perfect skin texture.