C&C per req:
To be honest, neither of these are really working for me. Her body position in #1 seems awkward and forced, and the blown highlights on the edge of left arm/face are rather distracting. In #2, the background is far too distracting, and use of an on-camera flash has made the lighting very 'bleah'. As well the cut of the bathing suit seems to give her an odd shape.
These are nice shots, but I don't think they're quite 'there' yet. You've got an attractive model, so get back out and practice some more!
Just my $00.02 worth - your mileage may vary.
~John