A professionally taken photo that is relevant to the article and is formatted correctly (minimum 300 dpi) can significantly increase the chances of the editorial is noticed in the first place and then published. Supplying your own photo can also save the media the trouble of searching for an image to go along with the article and make your submission even more appealing.
It's worth using a press photographer as they are the most knowledgeable and can provide you with the image in an electronic format, ideal for forwarding on to the editor. Look for photographers who can show that their pictures have been used in press and be clear what you expect them to photograph for the money you're paying.
