I am trying to create the wood grain texture from your tutorial. I created the brown area with the freeform pen. Create a new layer and apply a noise gradient. However, each time I create the gradient I lose the selection. I have to go back to the first layer reselect it, and then create a new layer for each additional gradient. I got my 3 gradient layers to appear over the selection, but now I cannont desaturate them. I even tried from the Image menu. The command is unavailable. What am I doing wrong?