Mountains and shit.
What type of brush did you use for the mountain?
Nothing out of the ordinary. Soft brushes at first, then I went a little harder. Used the smudge tool to blend the light and dark values of the mountain. Afterwards, I used the lasso tool to create hard-edges reminiscent of pen-sketches. When I colored in my selection with the lasso tool, I used a brush with a low opacity (varying from black or white depending on the light).
so that's what the brown stuff under the mountain is...