The first part of what will be a multi part signature technique tutorial. It's written for those at a beginner/low novice level BUT to execute these techniques you'll need to at least know your way around your image editing program of choice, since this is more about exposure to different sig making methods rather than step by step instructions on how to do them.
I do use GIMP but the techniques mentioned here are pretty universal, so at least in this part it shouldn't matter what program you use.
Anyway I hope you find this helpful! \o/
Please check out the other parts here:
part 2: [link]
part 3: [link]