I totally get you with tiring to funk it up but the dials, Floor and the cable all look the same color which is about 2/3 of the image. To me this is giving it a unfinished look as it almost looks like a clay render - which is a shame as the model looks spot on and the base is looking good. I also think the chrome would be a good look for the dials and who knows with the done maybe it will be enough to break up the scene.

But keep at it - your on a good path.