Quote Originally Posted by RobA View Post
Which version of the tutorial and which version of Gimp are you using?

-Rob A>
I am using Gimb 2.8 and I am not sure about the tutorial all I know it's meant for Gimb 2.6... I downloaded the tutorial from this thread...

EDIT: I think the mountain problem was because it was easy to miss where you are supposed to change the output levels as well as the input levels on step 19 of the third PDF (altering the color levels on the mountain noise layer).
I need to do the tutorial again and try to spot if I make some mistake in that part.