I was wondering if there was a way to nominate a new cover image. My contribution was accepted (I did it in the app and there didn’t seem to be an option for that there). I just was wondering if there was a way to switch out the old image for the new one. The new image is crisper and has the new changes to the building, which are subtle I admit.
Welcome to the forum 
You can submit additional photos when you are within range of the pokestop.
- Click on the pokestop
- then the arrow at the top right
- then the three dots at the top right
- then click on Add Photo
Once a wayspot has multiple photos, the one with the most votes becomes the cover photo. Votes can be added through Pokemon Go, via postcards or via the wayfarer map (Niantic Wayfarer).
Ok, thank you!