I took that sentance to translationparty.com and it actually made that sentance grammatically correct!

Mason is the city's famous artist, known for creating sculptures of the bright half of his grave.

Mason is known for creating sculptures of famous artists in the city, near the bright half of his grave.

Other highlights:

Mason is the artist, known as a tombstone that he is famous, semi-gloss to create a sculpture that is located in a nearby town.

Mason is famous for his gravestone, to create a sculpture in the town near semi-known artists is as shiny.

Mason is shining his gravestone is known for creating sculptures of famous artists town near half.

Mason, Shiny known for creating sculptures of famous artists of the city close to half of his tombstone.