I mentioned this in a previous comment, but I really like this Fixit Clinic poster from the Boston area:

https://allevents.in/mattapan/fix-it-clinic/200026636930752

It's not a ground-breaking paragon of graphic design but it communicates what it needs to communicate: what, when, and where. And crucially, it has photos showing what the event looks like. Photos of real people fixing real things.

The deep dark uncomfortable truth is that art is subjective, and at best you can only ever get a general consensus