When the work is mounted, that means you also have the best to make derivative works according to the original. You may also produce and distribute copies, including promoting T-shirts with the art on them. Just like copyright, trademarks don’t must be federally registered but stand to benefit from it https://copyrightdeutsch77768.thenerdsblog.com/39577039/what-does-how-to-copyright-a-song-mean