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4k, masterpiece, high resolution, 1man, solo, upper body, top of head, military, smile, looking at viewer, clear details, arknights, flat color, anime coloring, simple background, boots, no belt, outdoors, black hair, blue jacket, bold line:1.5, muted colors, surrounded by empty space, standing, Cel Shading, muted color, no shadows, character occupies about 90% of screen height, neutral expression, serene, buttoned all the way up to the collar, fully fastened uniform, neat and formal appearance, no emphasis on body shape, wholesome, lineart, muted color
AiTester_null
