Okay so I got the mountains figured out or at least a result I am happy with. When using the nagel brush to do the terrain you say to "making sure opacity setting are on..." Are you referring to layer opacity or brush opacity? Also did you do any layer blending with the brushed layers?

Sorry for all the questions but I am a complete noob to mapping. My PS experience is in web graphics and design.

Thanks in advance!
Nemasis