The Soviet Union may be dead, but the Communism will live! (jk)

Main trigger:

soviet propaganda poster

Additional triggers:

 traditional media, retro artstyle (strongly recommended), realistic (for more details), limited palette (for more style), multiple monochrome (makes the style stronger)

(I recommend using either "realistic" or "limited palette, multiple monochrome")

May help:

painting, watercolor, colored pencils style (choose what you like most) 

Recommended strength: 0.9 - 1.2 (use hires fix for strength more than 1.0!)

Known issues:

• It's quite hard to get rid of "text", if you need to get rid of it. Use "text, russian text, cyrillic" in negatives, if you need to remove it for some reason (better put it into brackets).

• It may go south with some LoRAs. I'd recommend to use hires fix with them.