First off your main pic is ruined by an unnecessary guy. You on your own is all that was needed in the shot. You come across on your images full of confidence. You look fantastic I would say you've got what it takes. Just a pity about the main pic.
You have range of posses and expressions which is good and have good portfolio notes. It helps to have more current images on the model portfolio though. I love your head shot and it would be even stronger image without the mask as it takes the attention away from your beautiful face.