(turns out i had a username,)
I would take more ingame screens, but i dont even have UO installed anymore.
here's another zoom shot,
www.nrgdrink.com/random/tfr2.jpg
All i can say is that i learned how to do mountain sides w/ tons of experimenting. You can see from the first shot some different ground textures, from very jagged to smooth. Also, i modify the color palette and dragonSP to fit my custom needs (it's very important).
The most important thing is drawing the map with a "feeling." You need to think of an atmosphere you want to create (calm, scary, dangerous, wonderous, etc.) and apply that to your creation.
You can see from my "dragon mountain" in the 2nd image there is alot of slopes up into the mountains that run next to lava and jagged spikes in the sides of the hills. Some paths can only be reach via creative means (boots that walk on lava, or teleport spells) and at the top there is a portal to deep within the mountain.
You need to create a story (or theme) to go along with every part of your map, or there is no point is creating it. If you do not do this, it will turn out like many many of the larger MMORPG's today that have hundreds of square miles of area, but nothing interesting to do.
Nearly every part of my map was checked in game for consistancy with the feeling i wanted to create (like the spiky hillside in the first image)
More ingame shots:
www.nrgdrink.com/random/tfr3.jpg
www.nrgdrink.com/random/tfr4.jpg
www.nrgdrink.com/random/tfr5.jpg