Similar to what I said in one of your other posts...the crop/composition is too loose. The model takes up 10-15% of the image. If you are trying to shoot an ad for the pool/hotel, that's great. But if the model is the subject, get closer, zoom in or crop more.
I agree, the life saving thingy is the first thing I notice in #1.
I like the one where she's looking up the best but a tighter crop or getting close would have made a world of difference. It could be my cheapo monitor at work but they look a bit cool too. Very sharp otherwise