Definitely like the look of this one . . . except for that dark edge around the fingers.
Hehe, I like the way you think Critique: the sharpness of the tools is a bit higher than the source of your lovely model. A tiny touch (.3 or so) gaussen blur on those bits would bring them truely into the pic.
Heh, she should careful with that sharp screw-driver... she might accidentally make one of those things pop
I'd post an analysis, but I'm not quite done studying two of the photo's elements..