Base land texture was created by selecting the land Noise Filter> Dry Brush Filter > Gausian Blur 2.0
Hills created in a new layer with a Clouds Filter (Green/ White) . Colour select White> Delete white area. Layer effect Bevel/Emboss soft, with contour and texturizer (bare mountatins) Depth 80% Size 18px, Highlight 25% Shadow 75% Then reduce layer opacity to 75%.
As I add other elements I will review the settings on the hills layer to se what looks best.