With a few hours of sleep I was able to get back into this project.

First to tackle: The "Ledge".
Click image for larger version. 

Name:	cave-04c-ledge.png 
Views:	70 
Size:	413.7 KB 
ID:	62388

The ledge was going to be an elevation that was higher than the base elevation of the tunnels. After I did the work on the wall shadows and shading, I decided to try and add an even higher level using some stairs and another layer of white to make it look closer.
Click image for larger version. 

Name:	cave-04c-Pit.png 
Views:	68 
Size:	391.9 KB 
ID:	62389

Next was "The Pit". This was a complete pain and I kept having to come back to it because the sidewalls and 'drop off' points never looked right. So with some doodling I was sort of happy with the side walls and it 'kinda' looked like it was farther away. But then I decided to add stairs to give the impression that the 'pit' was actually two levels and that there was an even darker (further) portion. That made me rethink the sidewalls entirely and I had to add what I'm calling 'contour' lines (first in black and then with some white high lights) to give the impression that the distance down the side of the wall is farther away than the regular tunnels.

I think it really turned out well.
Click image for larger version. 

Name:	cave-04c-pool.png 
Views:	56 
Size:	376.7 KB 
ID:	62390
Lastly was the pool. This was basically a repeat of the techniques I used on the 'Water-Side Cave' post earlier. Not too bad.

So here's a good point in the map. I hate to call a map 'Done' because you can always go back and tweek and tweek and tweek but I'm not sure what else to add to this.

That's where ya'll come in.

I'd love your feedback / comments / suggestions on this. Elevations are a pain and I'd welcome any tips.

-Green Pilgrim.

Without a Grid
Click image for larger version. 

Name:	cave-04c-620.png 
Views:	70 
Size:	434.8 KB 
ID:	62391

And With. The grids I use are simple. Render your grid in white. Copy the layer and turn it black. Put the black on top of the white and then gausian blur the white to 5.0. It will create a 'white shadow' under the black lines to draw them out more (IMO).

And then I apply the base 'tunnel' mask to pull the grid away from anything but the tunnels.
Click image for larger version. 

Name:	cave-04c-grid-650.png 
Views:	88 
Size:	505.4 KB 
ID:	62392