Sasquatch

I am beginning a series on my family. I have taken a photo of each member of my immediate with the intent to capture, in the form of a caricature of sorts, their interests or personality. The shots are equal parts serious and comical.

This first shot is my younger brother, Andrew. He is passionate about music, very passionate. In addition to listening to music, religiously, he has played guitar in a number of bands. His latest band is called: "Sasquatch." He says they are shooting for a blend of classic "rock and roll" with occasional rip-roaring throat vocals. They are a new band and don't have much material gathered yet.
If you are interested visit: [link]

Critique Welcome. I would love critique specifically on the success, or lack thereof, of this shot as a themed portrait meant to express a person's personality and interests in an euqually serious and comical fashion.

Full view appreciated.
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Nikon D70s
AF-S DX VR Nikkor 18-200mm f/3.5~5.6 IF-ED