If you think this means I'm
switching sides of the camera, think again!
Okay, on the technical merits, I'll give you an across the board 6 out of 10 for the series. Light, light, light; you need WAY more of it in the room, even for the darker images. All of the images show a little camera shake and blurryness, which would go away if you could shoot faster. The grain will also come under control with more light available... Given the garage you were shooting in and the lights available, I'd say you didn't do half badly, though.
From an artistic point of view, I'd say about an 8 out of 10; you've got a good handle on the genre, and even the focus/sharpness issues work out okay in context. I don't care for the half grey half red backdrop in the first one; it kills what is otherwise a pretty good composition.
The second one is just a huge fight between Weston and the background for attention, and the background is winning. You need to get some separation between model and background, which is easy for me to say since I'm not shooting in an actual garage...
Third shot, again, more light would help you out a LOT more than you know. Also, you've got a weird color cast going on that's a little distracting, especially with the noise from shooting at such a high ISO. Composition and the idea
of the lighting are both pretty good, though...
The fourth shot works as it stands. Lighting, noise, and color all work together well and I like the cropping particularly in this one. One keeper for sure, which ain't half bad for a first shoot.
A different side of Weston: