Per Bernal is actually a very good photographer, and some of his pics are truly great. He is not the one choosing the covers nor the pics in the magazines, or 'photoshopping' them either.
As many photographers know, you can take quite a few pics, but only some of them can be considered worthy. You never know when you are going to get the right pic, that will work or catch some editor's eye, or just be ther right one.