The BBC staff are top notch. They're extremely thorough, inquisitive, and insightful; so when I was going back and forth with them about the layout and captions, it was a surprisingly painless process. The only complaint that they expressed was not having enough pages for the images I submitted. Can't get better feedback than that!
If you'd like to check out the actual portfolio complete with captions in PDF version: Click Here
Or, you can find the online gallery of some of these photos here: America's Swamps