I've got to agree with PB man the rendering and texturing need a bit of work at the moment its a bit blown out and too perfect with regards to colours, also the texture on the neck is far to large, and it need a bit of a bump.

If it was me I would add an environment to start with so that you can see the reflections as at the mo theres nothing to reflect so the chrome looks white.

with my Les Paul I mainly used photo textures, think that the only procedural was the plastic and the chrome, everything had a bump and most had a fresnell effect to them, really adds to it.

With something like this where youve put in the time in modeling youve got to di it justice with the texturing and rendering, its a paint but at the end of the day it will be worth it for the praise you'll get off your mates!!

Good luck!