Just because it look quite cool.
Final image above.
Slightly softer version above.
It's not particularly amazing but I just wanted to see what I could do before I follow a tutorial and make a big improvement. I do like the idea of using textures to add a bit more detail to my work, and it's a really good way to help you visualise what something might look like, but it may not be something I use yet, we shall see. It's pretty funky though :P