Most of them are overexposed with large parts of the photo burned out, automatic white balance doesn't seem too consistent with some pics too blue and others too yellow.
At least they're in focus.
Low-light seem to be a winner however.
Most reviewers don't say if the pics were taking with or without HDR+. Maybe only HDR+ is alright and standard mode just poor.
Google has a lot of work to fix this camera.
I mean, getting the exposure right is the very first thing. You'll see this illustrated in comparison with Galaxy S6 or iPhone.