Anne, they may be holding their tummies in -- or at least standing up straight -- I know when I did my "after" pics I tried to stand up straight! But I also did so in my "before" pictures. And there is NO retouching of any kind done on the photos. If someone is discovered to have tampered with the pictures that person would be disqualified.
Do they lose more weight in the midsection than the thighs? I don't know. It is impossible to spot reduce. They lose fat where they have the most fat to lose -- that is how the body works. It all depends on body type. You can't change the fundamental body type you are born with (except through plastic surgery, I suppose).
I can't really speak for others but I can tell you my own experience. I lost inches everywhere, on all parts of my body, except for my shoulder girth. My thighs will NEVER be long and skinny; that is not the way I am made. But they are slimmer (and more muscular) than they were before I lost fat and gained muscle.
Body fat percentage measurements are always estimates. Even using the most expensive equipment, there is some guess work involved. In the Lean Eating program they ask you to use calipers and have the testing done at a wide variety of sites by the same person each time you sample (once every 3 months), preferably someone who is trained in doing it. I couldn't find such a person so my husband did the measurements each time. That was good enough. I'm sure he wasn't accurate, but all they are really looking for is a general trend.
Some gyms have machines that do a quick overall estimate but it is super innaccurate; you're better off with the skinfold measurements in most cases.
Astrid, I know it sounds like a lot of money. There IS a scholarship available to people in need. So you might consider applying for that if you are interested. ETA: actually, there are a few scholarships available.
But quite honestly, I believe that $100 a month for one of the best educational programs I've encountered in my life -- and for a life-changing experience-- is quite reasonable. I say that advisedly. I have been in and out of universities and other educational institutions for many years. This program was designed and is overseen by a truly amazing woman. She's a former Woman's Studies professor, amazingly bright and dedicated.
Having said that, the information presented in the program isn't earth-shattering. There is no diet. It's not about calorie counting or forbidding this or that food. It's not rocket science. It is the same advice you heard from all the YLF sisters above. Eat slowly. Reduce your portions. Choose carbohydrates wisely. Drink water. Etc. etc. ect.
What makes the program different is that it is HABIT based. Most people try to do too much at once, and they try to do it without support or accountability. It's almost impossible to achieve success in those conditions. It is the support and the design of this program that makes it different from the rest.
In the program I developed habits that will be with me for my lifetimes. I just don't question them any more. And this means I don't have to struggle to maintain my weight. Also, the program changed my body image and my sense of myself overall. I feel much more capable and more optimistic.