A 16K ultra-realistic photograph of a macaw eye. The eye has a vibrant yellow iris with intricate details. Surrounding the eye are vivid red, blue, and yellow feathers. The feathers are illuminated by the golden hues of the late afternoon light. The photograph has a smooth bokeh background in warm tones. The lighting is dramatic and natural. The depth of field is shallow. The ISO is low. The aperture is f/2.8. The aspect ratio is 16:9. The photograph is taken during the golden hour. It has high contrast and crystal clarity. There is no digital noise.