This image made me smile and most voters always react well to humour and creativity.
How could you have improved on this? Well the lighting is very flat and dull, try experimenting with various light sources, and positioning.
You could have upped the brightness/contrast in PS to give it a boost, but you would have made that blue background even noisier. You could have lightened and strengthened the yellow with selective colour.
Moving the banana forward would have given more depth to the image and lessened the distraction of the noisy background.
Your focus seems a little soft especially on the left-hand side. A Smaller aperture would have overcome this.
Velvet underground anyone :) ... anyone??? Beuler? ... Anyway, Nice idea ... I think bubbles and more dramatic lighting might have been a nice touch but I like the idea.