Design a hyper-realistic close-up product photography image featuring a pair of designer leather shoes positioned on a minimalist gray background. Use an 85mm macro lens with an aperture of f/4 to achieve a balanced depth of field, ensuring the shoes are in sharp focus while the background is slightly blurred. Set the ISO to 100 and shutter speed to 1/160s to maintain clarity and avoid motion blur. The shoes should be angled to showcase their sleek design and high-quality craftsmanship, with rich, deep tones of leather that convey luxury. Soft, natural light should illuminate the shoes from a window, highlighting the texture of the leather and creating a subtle play of light and shadow across the surface, enhancing depth and dimension. In post-production, apply HDR effects to enhance overall clarity and vibrancy, ensuring that every detail, including intricate stitching and reflective surfaces, is captured. The final output should be in ultra-detailed 8K resolution, showcasing the exquisite design of the shoes.