Interesting Picture and a very good interpretation of the challenge.
I like the contrast, but think the image could have been a bit brighter, and perhaps more color saturation. The depth of field is good, but just a touch more to capture the upper right side of the ball a little more sharply.
I think, though that a little bit more drama to the lighting could have helped. Perhaps a bit more to the side or top with lighting, or even a bit of a colored back light. (A colored back light might have helped fill the dark void in the middle right side of the ball.)
very complex image of...something. Seems to be alot of subjects that elude my recognition, anyway i quite like your choice here very interesting and well executed.