The horizontal lines on the gate house are meant to imitate slabs of stone that make up the walls of the gate house. I haven't decided if they will stay or go as of yet. Perhaps slight coloration changes in the stone texture will be applied to convey this idea. I do have the option to remove all outlining lines from the model before export to a 2-D image.
Additionally, texturing will be one of my final steps because it tends to slow down the application. I agree that texture is needed. Terrain generation seems to slow the application down significantly as well, so it too will have to wait.
Thanks for the interest and comments, it makes the clicking away more worth while.