Hi,
I have also found all of these issues with this portfolio also.

Issue With full width Portfolio using Swift page builder.

1. Large image header – can’t remove spacing below.
2. Text goes all the way across the page.
3. Gallery – Large gap below gallery, think has something to do with setting the remove thumbnails check box. ( But even if I turn the tumbnails on you can still see big gap.
4. Client featured logos are appearing really small with li tags by the looks of it. Also have 6 logos but only 5 appear.
http://www.organicwebdesign.com.au/airpig/?portfolio=blue-zoo