The first photo is a line of gun-carrying ones, very attractive. This kind of anti-era plumpness is still somewhat impactful.
I服了U http://www.ifuleu.org Revolutionary rhymes can't be missed either: "Revolutionary soldiers are bricks, to be moved wherever needed. Building a skyscraper doesn't make one arrogant, and building a toilet causes no complaints." I feel that in that era, slogans were generally written with various simplified variant characters, so this slogan sign feels a bit awkward.