3d background, arifumi imai, cgi, effects, flying, hair, rotation, shingeki no kyojin, shingeki no kyojin series, mikasa ackerman, 1girl, paradis military uniform, three-dimensional maneuver gear, scarf, forest, black hair, jacket, weapon, nature, short hair, tree, sword, solo, boots, black eyes, thigh strap, belt, emblem, holding