Needs a better studio environment to really show it off for the render. Modeling wise, an extra layer of sub-div on the pickups, you can see the rounded edge is segmented. Also, at present, the pickups look like they rise up out of the pickguard, there should be a small gap around them as they poke through.
Jack plug, push the “hole” back and make it black with zero diffuse so it appears to go into the guitar body. Maybe bring the upper points of the pickguard in a little to give a slight angle to it, it’s not often you get a hard-cut pickguard.
One other thing, it’s a small matter and I don’t know if you want to go to that level, but the machine heads are not one piece but have a collar thus;
All that nit picking apart, great work and I really do think a better “studio” environment would make it look even better without any modelling changes. :yes: