I didn't see the darker version. So my opinion is only based at this image. I like this computer produced image as it is very original to me. When I first saw only the thumbnail image my first and rough impression was that it was a bunch of grapes. Looking at the full image, it gave me the impression of clustered, light giving, artificial planets in the universe. Then I found out that I'm probably looking at (a kind of) golf balls. A question still remains: "How did you get the lights into the balls?" The fact that the image kept my attention, may be a further indication that it is an interesting picture. Well done.
I like this.....and think that in addition to this one...another version, with black only for background would look very interesting...calling attention only to the main design.