Actually when I tried the camera app, there are no much options available. And what I observed with the photos is photo processing is nice but not always the same. The consistency of image processing needs to be improved. And night mode is one area where nothing should look into. That needs a major improvement.
Also miss
- hiding status bar on lock screen,
- customisable AOD,
- quick settings or widget to switch between silent, normal and vibrate modes
- Devices charge percentage widget