again, it would be nice if you could make full use of that DOF. This is one situation where I wouldn't use autofocus. If you could cause the center of focus to be about half way into the chip, you would probably have the whole thing in focus.
Are people sharing props, or just have the same ideas. I like the subjects you have chosen, and the light is nice and dramatic. I think I would have liked to have seen more cropped from the bottom however.