It is very cool! A little too "clean" though I think. The tubes could also use a little "gas glow"... rectifier tubes typically glow blue, pre-amp and amplifier glow reddish/orange. Adding the "getter" spot on the sides of the tubes would add more realism as well (the "getter" is the mirrored spot on the side of a tube).
An excerpt from Wikipedia " To prevent any remaining gases from remaining in a free state in the tube, modern tubes are constructed with "getters", which are usually small, circular troughs filled with metals that oxidize quickly, with barium being the most common. Once the tube envelope is evacuated and sealed, the getter is heated to a high temperature (usually by means of RF induction heating) causing the material to evaporate, adsorbing/reacting with any residual gases and usually leaving a silver-colored metallic deposit on the inside of the envelope of the tube. The getter continues to absorb any gas molecules that leak into the tube during its working life. If a tube develops a crack in the envelope, this deposit turns a white color when it reacts with atmospheric oxygen. Large transmitting and specialized tubes often use more exotic getters".
http://en.wikipedia.org/wiki/Vacuum_tube
Now, you're asking why I would post this info; because I LOVE VACCUUM TUBE AMPS! And I would love to see this image "kicked over the edge". It would make a great background on my computer!
Mike Tripoli