My English is not very good.
All the artworks in the game made by famous artists such as Da Vinci and Picasso. Only i have the ability to upload artworks. The smartcontract checks, the author's name and the title of the picture character by character, if they already exist, then the program does not create a duplicate. Image is taken from opensource and dont put to the smartcontract
Thanks for your explanation. Now I see what was meant. The cryptoartworks, paintings by famous artists such as Da Vinci and Van Gogh, will be unique only inside your network, and only there you can guarantee that there will be no duplicates. It is not like CryptoKitties then and your statement in the OP:
I created the project a bit like CryptoKitties, only CruptoArtworks, without the ability to reproduce. ~
is a bit misleading because not only your CryptoArtworks lack the ability to reproduce, they also lack the ability to be unique all over the Internet. You see, in CryptoKitties each cat is one-of-a-kind and it cannot be replicated anywhere, while your CryptoArtworks cannot be replicated only inside your network.