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.

fantastic models. i'd purchase them if you put them up for sale.

Look great! I like leather-guy's suggestion. I'm also a scene assembler and will be doing some greek/roman settings in the near future. I appreciate your attention to keeping them realistic. That is important for me. If you do multiple buildings, streets, courtyards, etc., and maintain good quality and realism, I would definitely buy. Transpond at RDNA has made some great sets (their roman sets are on my short list) and so does Castle Development with their Egypt project...great stuff! That may give you some ideas for amount of content and price as well.

Beautiful modeling work! I hope you'll do a ruined version, too--my mouse hovers over every ruined temple model I see, but in the end, they somehow don't look like real ruins....Some weren't 'broken' looking enough (often the broken parts were kind of smoothed-over looking) as if the modeler hadn't been working from photos of actual Greek or Roman ruins and wasn't seeing the rough, shattered look of the broken ends.