Not really what I think of as proportion. Not as interesting as it could be. I see some small white spots on the glass of the lava lamp. Try this when the light hasn't been on for so long. I think you get smaller blobs then. A little more light in the background might be helpful also.
Composition: Subject Placement, Cropping, Background 4
Technical: Focus, Exposure, Lighting, Processing 4
Appeal: Is it Interesting, Motivating, Etc.? 4
How well does it meet the challenge: 5
Total Averaged Rating 4 Autool