Extreme macro, ultra-detailed close-up shot of a human iris with intricate amber, gold, and deep brown textures radiating from a wide black pupil, fine iris fibers and striations catching soft light, tiny reflection of a bright window visible on the cornea, delicate eyelashes framing the edges, fine skin texture and subtle blood vessels visible in the sclera, shallow depth of field, hyper-realistic photographic detail, warm natural lighting