Personally this photoshoot is a bit meh. In the shot above, Marisa's face looks way too photoshopped and I'm really not into the posed pregnancy photos (or posed baby photos as well). I prefer them to look more natural - more like how a real woman would look. But this a magazine and a VS model so that's never going to happen.
Although they are still way to posy - I really like the second and third shots. They are going for the ethereal beauty look but it has worked because her face looks much softer and less severe in these photos.
To comment on the barely there clothes - the skirt is lovely - very Jessica Alba-esque.