The composition is very weak. Zooming in more on the light, or cropping it so that it is not in the center would improve it. A bug on the ceiling would really add interest.
I like this photo. The lamp seems to take on a clock feel with the shadow in it. I like the compostion with the light shining more on top then the bottom. The only thing is you can not tell if the ceiling was white. I think it is nice though.
Think this is a bit dark, as the background was of a white colour with a light subject....subject is of a light colour, but unfortunately the background isn't.