This is not the Fireworks Galaxy
Actually it is the Triangulum Galaxy (or Messier 33) in the constellation of Triangulum. A fireball happened to pass nearby, leaving its bright trail. The dust cloud at right, is part of the so-called Integrated Flux Nebula. These clouds glow because they reflect the combined light of all the stars in the the Milky Way.
Exposure: 2 h 43 minutes in total, Samyang 135mm f/2 at f/2, Canon 550D at ISO 800, Star Adventurer Mini. More details at AstroBin.