1girl, horns, robot girl, humanoid robot, robot joints, long hair, pointy ears, mechanical tail, grey hair, mechanical wings, grey eyes, from behind, against wall, tail wagging,  ass <lora:Mecha_eli-chan:1>, score_9, score_8_up, score_7_up, score_6_up, score_5_up, score_4_up, BREAK source_anime, masterpiece