You will note that at least one of those you show has been removed multiple times and hotly debated in this same forum:
If this is a screenshot of a duplicate check, it’s counter-intuitive but approved wayspots are really not examples of what is eligible and as the thread above will tell you, if they appear to be for nonpermanent objects, they risk being removed so they are not a very safe bet. The latest clarification we have on the subject has been shared to you above. It unfortunately cannot realistically cover worldwide artistic practices and laws, but it’s a start and reading this can get you started for using your best judgement locally.
In my observations, all three types of objects you show are of the kind that is likely to get removed by Niantic when reported.