In the past ive made city pictures and had trouble blending buildings and other objects into the ground. As seen the picture included, they are buried but almost look to be floating. There will be 50x the number of buildings here in the end but some will be upfront and plainly visible at the intercept the ground plain. I might try changing the color to a dark, possibly green texture on the horizontal surface only. Any ideals appreciated. Figure ive got plenty of time though, this picture wont be finished for weeks.

Attached Link: http://www.silverblades-suitcase.com

Hm, depends what you are eventually wishing but... Why not make a small base for the prominent buildings, generally buildings sit on a platform of some type. Make a grey scale image in 2d application, 1st layer a medium grey, then make a circle with a much lighter grey, then apply a gaussian blur. So you get a blurred circle. Aplly this to a terrain, adjust terrains clipping, materials and height/size to suit. Would that do what you wish? :)

Also where are the shadows? I think they look like they are floating because there's no shadows.