@Loopysue can't be the graphic card, I don't have one installed, just using the native built in on the motherboard! I'm using a 3 year old stock HP Envy LOL. It seems to be a specific asset. The only engine it would sporadically render in was Workbench set at no more than ten passes. Plus I only have 8 GB of ram on board this clunker as well. In the mean time here's what I have been able to add over the last couple of days. Trying to add more vegetation, with some seasonal variants.

Well the latest Microsoft Update made a proper mess of things for me! I was running close to the edge on available RAM before the update and after the update Blender decided that it needed more. So, I am somewhat hampered but undeterred. Barring any unforeseen disasters, I should have double the amount of RAM installed by Friday of this week. Rendering vegetation models eats RAM like a hungry dragon so while I have refined and added more terrain features, I can't really get them out of my PC with the level of quality I would like until after I upgrade. I did manage to render a new version of the spiked moat before the update so I have attached it here.

Been working on refining terrain features to make them look more realistic. This is my take on a dirt mound. Going to rework the back fill using the same appearance/texture.

Dirt back fill along an outer wall, there will be several variations of this symbol with more vegetation and a little less dirt!

@mike robel I was enlisted, regular Army from 1977-1980, HHC 3rd Bn 60th Infantry as an 05C Radio Teletype Operator out of Ft. Lewis Washington. I rode and had air conditioning/heat while others walked LOL. The rest of my time was as a 19D Scout/Recon instructor assigned to 1/322 CAV, Army Reserve out of Omaha from 1980 to 1985 when I got married and shortly thereafter had a two week traing stint at Fort Hood. After I returned from training I was informed by my wife that I wouldn't be reenlisting :-)