I personally like #1 and #4. The model is very pretty and you seem to bring out a certain character which is very nice.
However, as others have said, the key is who is the portrait for? If it is for the subject, then you have to think about what they would like to do with it and how they would feel about it.
The basic issue I think is that your photo has an urban, gritty feel whereas the subject probably wanted a light, bubbly feel.
Some aspects to consider:
- the lighting is moody, almost ominous, what one might see in a movie right before the bad guys come. That leaves one with an underlying disquiet.
My experience is that most portraits are better with light, airy, bright mood - imagine your model in a field of flowers.
- Composition - in some, what you have is almost an environmental portrait. It succeeds in that regard but if the intent was to highlight the model, you may need tighter composition
- You have to touch up the skin, at least a little. At least the zit on the forehead and maybe even soften the freckles a little bit.
- she has very nice eyes - a catch light and little brightening would be great
- you can do light PP to improve contrast
- In most portraits, you are better off with the subject brighter than the background unless you aiming for a high key effect.
Here is some (very quick and dirty) rework of your photo. I hope you don't mind.
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Safety Warning: Bad taste unmitigated by moderate skill