I sat down last night and finally stared figuring out new tile sets for buildings. Its not nearly as difficult as I thought. Like most things, have the trouble is just sitting down and starting. At the moment, I have the center base sprite built. I'll be using that as repeated tiles for the building windows. Now I'm working on the corners which will be used to frame the windows. I'll post pictures of the tiles when I'm finished. Each tile was only about 5kb which seems manageable. I'll have more soon.