This is great advice - and its free too.
Look for all local groups, usually they are active too. I wouldn't go the fakepagelikes way, better grow your audience the real way. Get people you made photos for to like and share your page. Get permission to publish their pictures. You should always add the people you made pics for on facebook, then upload some of their pics and tag them after the shooting this will bring the pics up in all their friends newsfeeds - best promo ever!
Take a look at the profiles of your customers that you have as friends and if they have a large friendcount - repost pics of their wedding every anniversary - and ofc tag them again
Well I guess you get what I mean - if you need more help - ask