You're better than a lot of pros, those I've worked with and not. I would kill the borders too, and lay off the photoshop filters. There's nothing worse than someone taking a mediocre photo, running it through a filter or 10, and calling it "art." If they are photos, let them stand as such. If you want to get into graphic art, there's a lot more you have to learn about using filters and effects judiciously. When the photoshop looks more obvious than the actual content, you're in trouble. I have a friend who is a graphic artist, and she's mastered photoshop as an art rather than photo tool and it's taken her years. You look at her work and she's totally taken it beyond photography. That's when filter effects work.
But, otherwise, they are solid photos and well done, with a good sense of color and composition. Some of the images could use a slightly different crop or angle, but that's the kind of thing that comes to you with time and practice. The image, for me, that goes into "pro" more than "semi" is the head shot of the girl in the blue and white striped shirt. It's a simple shot, but the lighting is very well done and captures highlights and details that improve the composition.
I'm sorry if I'm being too critique-y here, but I teach photo and it's hard for me to look at work and not comment like I would to my students.
