I like the lighting. Very clever to make the copper atom. The only thing I'd like to see different is maybe the camera directly above the photo so we can see how good your circle is :
Ok, upon first glance, my immediate reaction was oh, no ... not another over-contrived shot. But then I looked again. I absolutely love the lighting in this shot! The arrangement is pleasing, in a geometrical sense, but the straight bits (nails?) add little in my opinion. The background has the perfect color and texure for this shot. Well done and good luck.
OOOO i LOVE this! and you included all the electrons, points for that but being a freak of chemistry i give you extra points for getting the 'shells' right.
This is just bad - sorry. You managed to get a kind of a copper tone in the overall color pf the picture - which is good. But as photography I just don't see any good things.