Just when I thought I'd perfected the look of my tileset. Curse you, evil tileset maker. This is beautiful.
After playing with it for a while, it is beautiful, but it takes some getting used to. Adventure mode confused me at first, especially with the slopes. Wish there was a way around the period/floor tile oddity. I also agree about the dwarves. The derp on the 12x12 dwarves is just a little too big, personally. As for your mod idea, I don't care for mods personally, as I try to stick with vanilla DF as much as possible. It sounds fun though. I think I'll stick with this tileset & colour scheme for a while yet. Great work!