The Florence Duomo (Minecraft version) by Jason (MamiyaOtaru) Winzenried is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

This means the Duomo may be used in other (non-commercial only) projects provided I am credited (with a link to this project) and as long as said projects are made available to be downloaded in the same manner as the Duomo. Re-using or distributing under more restrictive terms may still be done if and only if permission is received from the original copyright holder (me), so ask if you have something in mind. (this summary is not binding; for the legalese, visit the Creative Commons site)

The edited texture pack is copyright Steelfeathers and distributed with permission from Steelfeathers, for use with this project. Distribution of a further edited version of the pack will require renewed and separate permission from Steelfeathers.