Having her sidelit with her hair providing some shadows for her lovely face works very well in #1. Very nice even tones for her face. The brightness of #2 is a bit much for me with her hair, face, and column all being a similar intensity. Maybe lower brightness. Maybe would have liked to have seen a vertical in #3 as the top crop seems a bit awkward against the clear background setting. Or maybe wider. The pose and look in #4 is very nice. I might like to bring back some of the blacks for more contrast but that is my taste. It is probably just flare from the strong backlighting. But, the composition is very good. I am a little confused about the pair at the end. The retouched one is the top with the strong skin tone texture? The texture seems a little strong to me. It might seem more natural if you added grain throughout the image. Maybe use a narrower aperture next time? My thoughts on a very nice set.