Its looking even better, but now its got that "repeating tile" effect that is common result of using tiling textures over a large area, what you need to do is add some "Chaos" and randomness to beak up that "tiled" effect.
Miniman...Goin back to scale for a sec, I would suggest adding some elements to the shot to give reference to the guitars size. Maybe lean it against an amp, or put it on a guitar stand?