3d background, cgi, effects, fighting, impact frames, shingeki no kyojin, shingeki no kyojin series, smears, smoke, sparks, yasuyuki ebara, 2boys, multiple boys, brown hair, weapon, emblem, paradis military uniform, jacket, three-dimensional maneuver gear, boots, eren yeager, male focus, clenched teeth, sword, thigh strap, duel, ponytail, wall, holding, teeth, belt