Can someone critique my photography? (portrait photography)?

I just really want to get some honest critique on my photos please. I guess as a whole, i'd like to know if they are any good really.

http://jenniferblake85.500px.com/portfolio/#/48

I'm hoping to upgrade my lens next year as i only have the 35 mm prime lens f/1.4, and the kit lens.
I have the Nikon D60.
I guess my main question would be, can i actually be a decent photographer with this equipment or not until i upgrade? I feel very limited by my camera and lens but at this time i can't afford to upgrade, so currently my photography is still a hobby and not a business.

Added (1). I feel limited because the pictures do not come out how i see them in my head. I want more isolation of subjects (depth of field) in my portraits, also they are not as sharp and appear distorted with this lens.

Added (2). Correction it is the 35mm f/1.8

I think they are great photos!

Meh… Nice snaps, most, anyway.

Seriously, now… Why do you feel limited? If the kit lens is the 18-55mm (I'm assuming it's the VR), that's a great little lens. I ditched the one that came with my D40 (as well as the 18-135mmm that came with the D80) when I bought the 18-200mmG (1st gen) several years ago. One lens does it all. It's all I've ever used on my D200. If you can't do good work with it, what makes you think another lens will help?

I think a high pass filter overlay on a separate layer, then erase it where the background is would a sharpen up your image while maintaining the desired background.

You can be a great photographer with a pin hole camera if you persist and learn. I'll give you some generalized critique, but with so many photos ranging from very solidly good to *sigh* almost good, it can't be too specific. First, I notice a tendency to use lens flair both correctly and incorrectly. Try to look at these yourself and learn the difference, good lens flair comes in as an intentional element that doesn't obscure details and leads the eye to the subject(s).It's complimentary in a couple of the shots, not in others. Natural light shooting is difficult in that you control the light by controlling your exposure, subject and background instead of the light. Secondly, I notice that some of your shots are good black and white. I also notice that some of the shots presented as B&W aren't particularly good B&W. Low contrast doesn't work in B&W and you can't save something that doesn't work in color by removing the color. Finally, I notice that most of your posing and composition is good. I also notice that some of the photos show a lack of attention to little flaws that should have been corrected in the pose before the shot. Always remember that portraits are to make the people in them look good.
As a suggestion, I'd join a photography forum where pros hang out and regularly submit photos for critique there. You can learn a lot from that. And it's free. Final parting shots, don't blame the lens and the camera, and don't BLAME the operator either. Just learn and do better. You are succeeding more than failing, but one failure in a portrait is one too many for some. Keep shooting.

There's too many to give any specific critiques. But most of them seem to have a yellowish green or yellowish orange cast to them.