Constructive criticsm here.....I still think you are way to tense in your photographs, your body, your face. Your coming across angry, defensive, uncomfortable, These are not physique shots they are personality/head shots. You have to be completley in control and comfortable in front of the camera. That is not coming accross..
Think of a bouncer outside a bar. they are in charge, they are in control. They will stare down a customer eye to eye, but their bodies are relaxed, they are not afraid, they are in control. no need to pose or to be pretentious, they are the boss. This is how you should feel in front of the camera. Your in charge, not the photographer. Stare down the camera like its just a tiny tit customer who trying to get in but you dont let him.
I think DaddyWadddy knows how to model better. He can stare down a camera while keeping his body and face relaxed and confident.