Not sure why you call those portraits as the background in enough of them is overwhelming the subject. You may want a nice, interesting background but the subject has to remain the central focus point.
Next, your PP is all over the place so that we have no idea what this person's skin looks like. No racism here, I would say the same thing about a white girl who looks like a ghost in one shot and looks like she just came out of the tanning booth in the next one.
Next, does she really want to be seen as a sex thing? That's what I get out of your shots and, again, it doesn't convey the idea of portraits. If the shots have another reason to be, fine, but portraits, come oooooooooooooon.
1/ could have been much better if she'd been wearing white cotton panties. Would be much sexier.
2/ we seem to be emphasizing her rear end. It is a lovely one but that hardly makes it a portrait to me.
3/ The pose makes it more of a sexy shot that a portrait.
4/ get rid of the rose (and the selective coloring) and you would have a nice portrait
5/ could also have been a nice portrait if you had gone along with the crowd (use it in some way) rather than fighting it. Doing your best is not making excuses but finding a way to use what you are dealing with.
All of that said, your shots are not bad at all. But they don't convey, to me, what you put in your thread title.