A lot of high ISO noise is visible in this, and the subject is interesting, but does not stand out. Perhaps some noise reduction and some additional color tweaks could give it some pop.
I think you could have gone for an even shallower dof here, but even so, I'm not too sure about how you've got your arrangement laid out. There are a few other guitar shots in this challenge that may give you some ideas for a more appealing composition :)
How many boyfriends do you have? We really need that apostrophe!!
Nice idea, but I think would work better either looking down the neck of the guitar, or with a different background that complemented the guitar or contratsed nicely with it, without drawing the eye away from it.