Hi Bob
Catch up time, sorry but it will be brief as I want to get comments up to date
Shadow - A nice strong shadow, looks like you had problems with the strong light, the B&W helps in my opinion, spot on for the theme
Glow - Liking the Energy saving Light, gives an interesting twist to the image
Round - Love the lighting of the ball-bearing, would have liked to see less of a shadow on the surface, but there again that would ruin the nice composition you have, as it does fill the frame well - Like it
Negative - that has a good feel/glow to it too, plenty going on in the shot that helps it work for me
Busy - A perfect festive end to your 2012 52, good luck with your 365 in 2013, I will do my best to pop in and subscribe
Well done in completing your 52 on time Bob