Extreme macro photograph of a single peacock tail feather eye-spot filling the entire frame, no visible background, the feather densely packed and fully covering the composition edge-to-edge. The narrow central rachis runs vertically into the eye-spot. The eye-spot shows concentric color bands: a dark blue center with a black oval pupil, surrounded by a vivid blue crescent of extremely dense, tightly packed radiating barbs, then a rich copper-orange to rust-brown outer ring, transitioning into thick iridescent green-teal barbs shimmering from emerald to aqua and chartreuse. The structure is lush and voluminous with overlapping, hair-like barbs and no visible gaps. Fine longitudinal striations, subtle gloss, ultra-dense texture. Direct flash lighting creates strong contrast and sharp focus on the center, with slight falloff toward the edges. Straight-on perspective, perfect symmetry, hyperrealistic macro photography, ultra detailed.