The sign with ‘Rondje Eindhoven left’ looks like a good trail marker. Shows the trail name with a direction to follow a fixed unique route.
The sign below with ‘97 left’ isn’t part of a unique or fixed route. These signs are used to create your own custom routes. These don’t have a unique name and/or logo which appears to be a requirement looking at the criteria clarification regarding trail markers.
The pole with multiple numbers feels the same as above one in my opinion. No unique named routes to follow. Just a bunch of numbers with an arrow but no unique routes to be found.