full body shot of a mech soldier holstering its rifle, Art Station, Trending on Artstation, cgsociety, concept art, cinematic, 8k, hyper detailed, ultra realistic, epic, high resolution, digital art, ultra high quality, sci fi, robot, sharp, 4k UHD, realistic, intricate, evil, unreal engine, art by Yi Yang artstation + StTheo + Alan Van Ryzin,