Sarah, not sure I follow, but did you mean to fill the large white space on your opening page with a featured image? You only have a few galleries, which is why it shows a large white space. If you had more galleries, it would be filled and there wouldn't be room for a featured image. I could have this totally wrong, so I apologize if I'm not understanding.
Btw, I've decided to direct people to my FAA page, not my AW site, because on the AW site when you click on a gallery the images show up spaced out too far with price boxes below them, which I think looks tacky. There is not way to change that. Images look much better on the FAA site.