You will find here a collection of Gimp plugins that I have written for my own use, or for my own amusement.
The scripts can be downloaded here: https://sourceforge.net/projects/gimp-tools/files/scripts/
Some sample images can be found here: https://sourceforge.net/projects/gimp-tools/files/samples/. Layers, paths, and saved selections usually have a fairly descriptive name, so that the whole process is fairly easy to understand.
I like to keep my scripts simple and focused, so most scripts here only have simple results that you can further tweak and refine to achieve your own designs.
I am a regular on:
so you may ask questions there, they will likely get answered.