I think it's not that useful to tag the image on the cyclepath.
Both because that one picture is just a small section and doesn't apply to all of those cyclepaths. And also because cyclepaths usually don't have images like that. They're on Panoramax/Mapillary and people can see them there. but because they're so long, it doesn't really make sense to tag them.

What i woulud however recommend is that you add the panoramax tag on the fire hydrant itself, that's much more useful. It also allows someone looking at the fire hydrant to then immedialty see a picture of it. Like so: https://dev.mapcomplete.org/hailhydrant.html?z=16.8&lat=50.89155389376086&lon=4.556349331135266&background=osm#node/1641938527