You mean that the buildings you added are too bright to match Kyledove's style? To fix that, I would use Adobe Photoshop. It's not free however. Another choice would be to use paint and use the color picker to use his shades of colors. I do know someone that made a entier D/P/P Tileset in Kyledove's format. Here is the link:
http://newtiteuf.deviantart.com/ . Cheak out his gallery. As for the autotiles, I don't really know anyone personally that can make autotiles, but I'm sure there is somebody here.