Great shot, I like the concept and love the depth of field.
There is one thing that bothers me with the image though. The back half of the photo feels a little overexposed. The plug is spot on, but some of the cord disappears and the white thing on the guitar is a little hot. Also the background is glowing white. I'd like to see the photo about half a step darker. (Though with this particular shot that might mess up other things and some dodge/burn may be in order instead.)