I like this Rob. The close crop above your head makes a statement of your eyes and the lack of detail on the head-stock avoids drawing the eye away from the main subject.
Also, given time for the eyes to settle on the image your slight lean to the right works very well with the guitar body top. Both your shoulders and the body top shapes compliment each other very well.
If I were to be real picky it would be to have avoided your leg getting in front of the guitar body when using a low key effect because the leg isn't obvious, so it looks like an editing error around the guitar body.
Please take my observation as constructive Rob as I feel it wrong if I didn't mention such a small thing in such a strong image.