It looks good and is overlooking everything but the water tank i think.
So in that direction it might be blocking a few aircraft but overall it’s a good location.
You can look here what the best range is you can get (restricted by mountains)
What is the Maximum Range I can Get?
It looks a little tilted, the antenna should be pointing straight up (90 degrees to the horizon).
It looks a bit like the cable is under tension, be careful not to stretch it.
For that height it should carry its own weight though.
Just let it run for a week and then check your stats:
Gabriel Sgattoni ADS-B Feeder Statistics - FlightAware