This lovely canvas art displays Agent Smith, a computer virus with a sole purpose to destroy Neo. This background shows us a thought cloud which says Smith’s favorite phrase “Mister Anderson”.
He usually use this phrase after finding Neo after a long hunt. Agent Smith (later simply “Smith”) was an Agent of the Matrix and the main antagonist of the series. After being initially destroyed by Neo, he became an Exile program and manifested as a computer virus. He is consistently able to genuinely threaten Neo, and later the Machines and the Matrix itself. Neo and Smith have a lot of battles throughout the entire movie series.