hey it really does not matter what you have done in the past, but it is more about producing and continuing to produce quality work. The NYT picture editor never went to college( he is no longer there, due to health problems) so all I can say is just keep doing what you love and forget about all the qualifications required because in the end it is the people who have the passion and drive to continue NO MATTER WHAT that will prove it all and it is what you produce and discover that makes all the difference.