Actually we haven't any set of town tiles yet. You just might start creating your own imagination. Feel free reinvent 19th century european town/city style. I imagine different steps of industrialization, from agriculture to heavy industy.
If you need some inspiration here the old Imperialism. Of course graphics now can be much larger.

- Towns in Old Imperialism
- OldImperialismTowns.jpg (46.19 KiB) Viewed 8815 times
And about the rights its as follows. Since you are the creator, you have the rights for it. If we want to use it, you have to give us permission. To make it easy for other fans, it's easiest if you also give permission to modify your work or use it in other open source work. However if I were you I would limit usage to non-commercial work. Now the
creative-commons license do more or less exactly that. You just license your artwork accordingly but of course you keep all the copyright. You can still always sell it if you would want to we only can use it in free works.
Don't worry. It's a good thing for creative people to have such licenses. Later I will come back to you about this question.
