There is no link back required when using my tutorial for your dolls, but I've seen people do so and think that's nice - that way more people can use this tutorial and hopefully help them in their artmaking process.

The goal of this tutorial is to help you to undertand pixelshading, making folds, drawing this particulair garment; whatever you like to call it, its is however NOT the goal to just copy mine pixel by pixel and call it your own! This might sound obvious - but to some people it's not, unfortunately.
So, draw your own creations and then apply the shading technique in the tutorial (or any tutorial on art anywhere, for that matter) to that.
There is no honor & pride in stealing, you know.