Thank you for all your comments. I really hope this tutorial is a contribution that will help some folks.
It's my first one though, so if you have any questions feel free to ask.
I'll be away for a few weeks, but if I don't answer by Christmas, you can be pretty sure my plane crashed.
I don't know much about Gimp, but from what I've read, the use of Layer Styles is a major difference. I used those extensively, so I hope you'll find a workaround.
Thanks for giving it a try. To me it looks like you skipped some instructions, but I probably didn't explain them well enough.
Maybe it's because I was using a mouse. Opacity settings are a different matter using a tablet, at least to me.
Yes. You wanted me to make one. So if it's bad it's all your fault. :p
Just kidding. Thanks for pushing me.