character: firefly_(honkai:_star_rail), masterpiece, best quality, ultra-detailed 2.5D anime illustration, Firefly (Honkai: Star Rail) as the clear main character, on-model Firefly face, delicate soft facial features, lively expression, gentle relaxed gaze looking slightly upward toward the viewer, subtle warm smile, emotionally present, full of life, distinct gradient eyes transitioning from deep blue to soft light blue to pink then warm orange, silver-white hair with soft mint-green gradient tips, extremely detailed layered hair, high volume, multiple soft strands and flyaways, slightly half-tied with elegant white floral hairpin and dangling pearl chains, long hair flowing naturally with soft ambient movement and rich depth highlights, camera angle: slightly elevated three-quarter view looking down gently, cinematic framing, Firefly placed slightly off-center but dominant focal point, pose: sitting gracefully on smooth white stone ground with legs folded to one side, relaxed natural posture, one hand, digital painting, detailed illustration, elaborate background, japanese anime art style, extremely detailed CG, detailed eyes, detailed skin, vibrant colors, vibrant lighting, glowing, masterpiece, fantasy, soft glow
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