The background appears to be directly copied from an image published at https://www.archdaily.com/796770/jonks-photographs-depict-the-abandonment-and-beauty-of-yugoslavian-monuments

Direct image link: https://images.adsttc.com/media/images/57f5/550f/e58e/ceca/7b00/036e/original/Serbie_-_Kadinjaca_-_Monument_(4).jpg?1475695879

Why is there Russian text professing support for the Soviet Union on a Yugoslav monument in Serbia...? What kind of fucked up world is this?

Damian0358 said:

Why is there Russian text professing support for the Soviet Union on a Yugoslav monument in Serbia...? What kind of fucked up world is this?

Probably some pro-Soviet vandalism when Yugoslavia split from the Soviet sphere. It's a really interesting piece of creative liberty for this artist to put that's also quite meaningful