1: A shallower DOF would be nice. The main thing I see that bothers me is the pose. In my opinion if her head was angled slightly more to the right, looking at the camera still, but head toward the empty space it would be better.
2: That little hat on her head is WAY too distracting. These little props are becoming popular, but not with professionals and here's the reason why: when you put something like that in the picture, especially when it's close to the model like that it becomes the main subject because it attracts all the attention. If the average viewer were to look at this picture, and the think about it 15 minutes later all they would remember is the crazy hat. It's too colorful and distracting. The model, specifically her eyes should be the main subject, not the hat. Imagine this shot without the silly hat. It would be much better. The only other things I can see is the eyes. They look like they've been enhanced a little too much in PP. That may not be the case, but it looks like it to me. Also in try to use a scratch or line remover to take out that hair going across her eye.
3: If you're going to use selective coloring, be selective about it. Don't find something to SC in every picture. To be honest with you there's a lot wrong with this picture, but instead of fixing it with PP, you just added to the problem. Ignoring all of that the main thing here is the background. Next time try this: shoot in aperture priority, and zoom all the way in with your lens. And then back up until you've framed the shot right, adjust your aperture to the maximum and take the shot. This will blur that background more unless you're using a small focal length range kit lens.
4: Another reason not to use selective coloring. This is insanely distracting. Once again, be selective when using selective coloring. Do it to only one color, not one object. The hair piece is now the main subject because it grabs all the attention because of the SC and because it's the object that falls into the rule of thirds. The model's eyes should be in the intersections of the rule of thirds, but in this shot they're in the center of the image. You do have much nicer bokeh in this shot.
Overall:
The Ugly: The selective color. I don't even do it unless a client specifically asks for it and then I charge extra.
The Bad: The bokeh. If you're still shooting with a kit lens this is hard to fix. Get yourself a 50mm f/1.8 for around $100 or less and that'll fix that.
The Good: Your focus is very nice and sharp! You're poses and angles are also pretty good overall. Keep shooting, just spend more time with your camera and less time with your editing software.
This IS the beginners forum, and for some reason, beginners LOVE selective color. 
