Sorry, I can't make her out in Post #1139. Perhaps I need some lightening or enhancing of the photo to see it.
I can see what appears to be her arm and part of her top in the post at #1143.
Also in the enlarged section of the photo showing a woman in the doorway on Riehlworld, it appears that it could be her but it's too dark for me to make anything definitive out.
see the small white dot 1/4" east of the top of jorans head?
the dot is also on the outer edge of natalees circular hair-bun at the 10:00 position....going south from the 6:00 point of the bun, there is dark which is her hair/scalp below the bun on the crown of her head.....then some skin which is her neck and upper back....lower right edge of the skin is the visible part of the halter top....coming back leftward, the seat-back obscures her left shoulder
best I can do :)
P.S.
it looks to me like she is leaning back to look around joran for whatever reason, and that the chick with the earring might have leaned forward so as not to obstruct the pic being taken......and that maybe natalee didn't know she was supposed to pose for this pic and moved as it was being snapped..