First two for me.
The first one is great use of one light and the pose is very peaceful mixed with a bit of repressed mischief.
The second one makes lovely use of two lights, but as Craig mentioned the desaturated outcome has made the image lose a bit of contrast. I think a further tweak of the curves or levels should bring that up nicely. Maybe even consider a very hard contrast where the grey background becomes black, however the
model's hair will probably end up being lost in the bkg. If you can reshoot, consider a third light snooted as a hairlight to seperate her hair from the dark background.
The third would look better if she actually had a dress where the skirt would flow better from her moving and lifting it. Right now, it sort of makes her look like she's not comfortable and not really wanting to lift the short skirt.
Not keen on the last one - pose wise is good as a fun pose but her expression once again has let you down. If you can reshoot, get her more comfortable and get her facial expressions to complement the poses to emphasise on the style you are going for. If it's going to be fun, a smile, a cheeky grin, a poke of the tongue, etc adds to it rather than a grim I don't really want to be here expression.