A) Using copyrighted work without proven owner consent is plagiarism and is strictly forbidden.
.....I) 'Copyrighted work' here means any work or creation made by someone else - it has its regular meaning.
..........1) These works are automatically subjected to the Attribution-NonCommercial-ShareAlike licenseunless explicitly stated otherwise.
..........2) If you use other artists' work in your own productions then you must adhere to any license, conditions, or specifications they list (or if none are listed then follow the license in clause A.I.1 above).
.....II) Free textures or textures released openly to the community may not be sold.