You might consider adding a selection of plazas, courtyards, approaches, a roman road, and a roman street with adjoining walls or building facades. This way scene-builders (assemblers?)like myself could use them in larger scenes with an obvious context. Add a few broken/ruined variations and your potential market would expand dramatically. I think a selection of jpgs of the source buildings you modeled from, or links to sites with pictures would be a nice touch as well.