Our little town every year holds a firework display and every year it goes through my mind .. "I should go"... forgot about it again and just happen to notice the night sky lit up with fireworks.. We live 10k's out of town so grabbed my camera and tripod and shot out into the garden .. but I could see that it was all going to end before I got camera set up so decided just to wing it 'hand held'.. As we have a 'Steel Mill' on the other side of town they were going to be inshot as well ... but when I uploaded the photo I could not believe how the Mill light looked like Prancing Unicorns .. So this is an ICM shot ..
An excellent capture - so glad you took the chance!