In my ongoing experiment with the iPhone 7 Plus camera module, I have found that the camera module is a more than competent picture making device. I have also found that the Snapseed photo editing app is quite proficient and very versatile as a bit of processing software. The Joy Gardenpictue in this entry was made using both.
And, although I have no way of illustrating it on the internet, I have been making very good looking 18"x18" prints from the iPhone made and processed / edited files. Prints that, when viewed from a print size appropriate distance, are virtually indistinguishable from prints of the same size made from a "real" camera with a 12mp sensor.
All-in-all, some very good stuff.