The bit about adding the new texture for soil is extremely thin and sparse a bit like the soil one pixel deep.
It's a few lines with no explanation I for one am trying to pitch this at noob's as a good way to learn Blender this tutorial does really well up to this point.
The two earlier new texture parts are also a little flaky on the explanation but the pictures allow you to duplicate the settings.
I am also trying to get to grips with it so I can produce a Ahra Pahts Shell tutorial.
Perhaps splitting this on in two Just before adding the soil with an export at that point would give a sense of achievement.
It would also focus attention on the weakness of the opening of that adding soil section.
I know this will sound critical and I am sorry for that. I want this to be the best tutorial for Blender it's pretty close now. New textures are complex. I am looking at a lot of sources and this is one of the best.
It may be OK. to say all you do is click the new button then you have 2 Mat 2 circled (ok elipsed) just above that and slightly to the left is a box with "MA:Surf/Dirt" where does that come from?
Do yo just edit it there or do you change something somewhere else?
Wow two copy and paste buttons wow copy what and paste what where?
You might as well tell a noob [Ctrl c] [Ctrl v] because that's copy and paste.
I am not angry or bitter here this is not criticism for criticisms sake these are genuine questions.
I suspect the stencilling is a wonderful piece of tutorial but if you can't make the texture it's wasted.
It is hard work writing a tutorial it's a hand holding walk so you can expect more from me.
If you want to get your own back, then feel free to go pick some holes in this one http://guildofwriters.com/wiki/A_Beginner's_Guide_To_Creating_A_Shell
because that's the one I am writing.