toon (style), masterpiece, best quality, absurdres, 1girl, solo, female focus, S_S_T_A, dark-skinned female, red hair, short twintails, mecha musume, optimus prime (cosplay), combat helmet, elbow gloves, pleated skirt, armored boots, feet out of frame, standing, grin, hands on own hips, smug, indoors, industrial,
