I think saying that your Iphone 7 is better than a dslr is quite a big statement. I think what is happening here is the photographer (you) are skilled and so you can make a good photo with the phone. It actually re-enforces my opinion that if the average person was given the most expensive camera, they would still only make an average photograph, and if a skilled photographer is given a mediocre camera then they can make a beautiful photo.