So … Niantic is expecting a significant number of players to actually go through the portals they get keys for and pick between pictures? Um … okay.
Reshared post from +Greg Kru
1.25 feature: thumbs up for a portal (tap a portal's photo, first).
A bit strange that the 'photo' button doesn't explain whether you're offering an additional photo of the portal or submitting a possible replacement photo.
The usual Bad Title, Bad Location and Bad Description corrections are reached from the same triangle button at top right.