Wow, pretty good sig that you can do in a few minutes.The only bad thing is the render, it looks too plain and doesn't match the rest of the sig, but the bg looks great.
I usually do those type of BGs for sim league sig. They all have a large logo of the particular team. This tut this was made for a person who is extremely new at GFX and is on my league team over at FBB, so im just trying to help him out with the little basics of GFX making.
Oh, I did the BG comnplete green. The put a swirly black line through it and smugded it around. And did a render effect on it(sorry, forget which, but its in the top 2 sections). Thats how I got it. Really doesn't matter, just make it green with black splinters or something.