This is a super original idea! Idea alone, I give it a 10. As I'm sure others have mentioned, the noise level is really high and hurts the overall look of the image. My nomination for an oobie.
This is an interesting response to the challenge, you've got some sound ideas here which work well but could do with a little improvement. The varied colours are appealing, the plain background focuses attention on your subject matter and the writing adds an extra dimension of interest that a standard 'molecule' shot would be missing.
So in terms of technicals, firstly it looks like this shot is suffering from artifacts of JPEG compression. To rectify this, use a higher compression setting (IE 10 or 12). Although your background is plain, there remains some texture to it which is still a little distracting. I'd have liked to have seen this photo as a 3D representation but from the looks of it, this wasn't possible. So if your sticking with 2D try to think more about balance in your composition, and take your idea of molecules and expand on it. Try to add more molecule structures to the image and create a sense of depth (some smaller ones, some bigger ones). I have given this a 3.
The concept is nice, but the execution is not as good as it could be. It appears the picture is noisy. The 2-d of it is not as appealing either. I would recommend using stiff wire to make the 'molecules' 3-d which may make the picture more appealing