[Opening Scene Description] In a professional studio setting, an extreme macro shot captures aikawa-tsukiko's mesmerizing eye. The sharp upturned bright blue iris reflects a spectrum of prismatic light, creating an ethereal rainbow effect within its crystalline structure. [Character and Eye Details] 1girl, mature woman (27), aikawa-tsukiko, sharp upturned bright blue eyes:1.4, pale skin with translucent quality:1.2, naturally long lashes:1.1, defined but delicate eye shape, ultra detailed iris structure, crisp catchlights, professional beauty photography [Technical Elements] extreme close-up, macro photography, multiple point lighting:1.2, rainbow light refraction in iris:1.3, crystalline iris structure, micro droplets on eyelashes, subtle eye makeup, prismatic light scatter [Environment and Lighting] studio lighting setup, main beauty dish from 45 degrees, two rim lights for highlight separation, rainbow spectrum highlights:1.3, professional environment:1.2, controlled humidity for optimal eye moisture [Quality and Effects] (best quality:1.4), (masterpiece:1.3), (ultra detailed:1.2), ray-traced lighting, subsurface scattering, 8k uhd, photorealistic, hyperrealistic, advertisement quality, depth of field variation across iris

[Basic Exclusions] (worst quality:1.4), (low quality:1.4), nsfw, bad anatomy, text, error, missing fingers, extra digit, fewer digits, cropped, jpeg artifacts, signature, watermark [Eye-Specific Exclusions] incorrect eye color, blurry iris, unnatural reflections, wrong eye shape, asymmetrical eyes, cartoon eyes, anime eyes, illustration style eyes [Technical Exclusions] poor lighting, wrong focus, motion blur, chromatic aberration, lens distortion, poor composition, unrealistic effects [Style Exclusions] painting, drawing, sketch, cartoon, anime, 3d render, digital art style, illustration style