Just as I promised, another tutorial has arrived. If you have read the first one, you'll notice the quality has improved a lot since then and the difficulty might have gone up since this one isn't intended for beginners. In this walkthrough I'll share some of my techniques. I wrote less about myself and more about the processes.
Since no image host will let me upload a image >10MB...
Kudos...very well explained. Most excellent work. I learned to muddle my through Gimp and my Sig is only my second attempt ever at making one. It was deleted for size and I scaled it to fit the requirements, but realized the text is off now. So, I'm in the process of making a new one at the moment.
Your tutorial has given me lots of ideas, and how to properly apply them.
I will continue to write walkthroughs for any of my work which I find enjoyable and nice looking. I'm even considering letting people request a specific piece to be broken down and explained step by step.