Being a full-blooded ****-ass from south LA, I have to say that looks like a very good recipe.
I'd share my recipe, but I don't really use one... just kinda throw it all together.
Just remember, there's only a few vegetables that go into a gumbo: onion, bell pep, celery (those 3 arethe holy trinity of cajun cooking), and okra.
Green onions andparsley are fine too. And of course, file powder spinkled on top.
I've seen some folks put in tomatos, corn, beans, peas, potatos, carrots etc., but never saw that in LA. In my opinion, if you start adding all that, it's not really gumbo any more... just a soup that resembles gumbo. Not to say it won't be good, but it's getting away from the traditional gumbo that I grew up with.