Royalty — commission which you, as a creator, will receive for each secondary market reselling of your work on the 7Heaven marketplace. For example, if you set the royalty to 10%: when you first sell your artwork to an X-buyer, you get 100% of the price (a 2.5% fee is applied). And then, when Mr. X sells our artwork to Mr. Y, Mr. X will get 90% of the amount and you will get 10% of the amount. So, for all the secondary market trades of your NFT, you will receive your commission as a creator.