You, my dear, are a stunning model!
1a) Shows off your gorgeous figure to a T. My qualm is more w/how the photographer lit the photo - I think w/more play with light and dark it would have been amazing...right now I'm distracted by all the dust and scratches on the floor and there is glare on the carved part of the chair - if you can get a black and white conversion w/some vignetting around the edges it would be best. Also it needs to be cropped more narrow.
2a) Kind of awkward and I'm not fond of how the photographer lit it - probably the weakest of the bunch
1b) Love it - would be better w/a tighter crop
2b) LOVE! Fabulous!
3b-4b) Very nice - photog should probably do a bit of retouching on under eye area...3b could use a bit more contrast as it's backlit which kind of washes out stuff.