Here's a few from my first real time with the iPhone 7 Plus camera. Nothing challenging in terms of lighting, but a good representation of color and exposure.
Things I noticed: The camera app itself is very fast, easy to use, and has not lagged or glitched, the 2x zoom is a VERY handy feature to have, knowing that you aren't going to lose quality, the portrait mode is pretty restrictive when it comes to subject distance so it's really a specialty feature but nice to have, the panoramic mode is pretty awesome, and I did notice a bit of muddiness in the photos of water.
PS - I had to resize the photos before uploading because I got a server error trying to upload the full-res photos. There must be a size limit for uploaded photos? I resized them to 50% (except for the two panos which are reduced even further to about 25%).