Fire spiral

During new year's party I discovered that to take shots of the fireworks I needed a slow shutter speed (yeah, never shot fireworks in my life, no joke) then I saw the fire guys and thought "perfect shot, no time for settings" so my camera was still in Tv (shutter priority) mode with 1" of exposure. This is the result. (then I thought, slower shutter and higher ISO would have worked, pity)