Fireworks are reactions that happen in the sky. The comparison is fireworks and the person the song is about are both special, unique, and beautiful, but if mis treated both can hurt you. A firework can explode, and so can a person's emotions.
Silhouettes are amazing, and I love the three deer (three is a magical number). I also love the light rays making it look early in the morning and giving the dusky feeling. Making the picture black and white was a good choice.