masterpiece, best quality, ultra-detailed, high resolution, 4k, an anime style illustration of a mecha girl in a dynamic pose, (looking at viewer:1.2), (brown hair, short hair, hime cut:1.1), golden eyes, (school uniform, sailor collar, white shirt, grey pleated skirt, grey thigh-highs, black shoes:1.2), (military cyborg arm, mechanical parts on legs, mechanical headband:1.3), (large sword on back, katana on back, detailed weapon:1.2), action pose, crouched, (one hand on ground:1.1), determined expression, intricate mechanical details, glowing accents on machinery, subtle sci-fi elements, clean line art, sharp focus, volumetric lighting, white background, (minimalist frame, golden border, "天然" kanji, "MECHA GIRLS" text, "MECHA GIRL 1ONEN" text:0.8)