Prelude to space war / 3D illustration of science fiction scene showing large military android with rifle looming over moon with fleet of spaceships in the background

robot gun spaceship 3d alien futuristic ship war "3d illustration" android armour art attack black blue character combat concept cybernetic exoskeleton fantasy fiction fleet future galaxy glow glowing illustration machine mech mechanical military moon red rifle robotic robotics robots science ships soldier space stars technology trooper universe weapon