Hello Alamo,
First off, what works for me; The pose is good, expressive and clear. The subject is sharply-drawn and clean, except for slight motion blur. You did a fine job on the exposure and PP, pulled out shadow detail (hair, guitar) while keeping the whites even-toned. The shallow depth-of-field is near-perfect, one-half to one more full stop (open) would be slightly better. Generally, for a stage closeup, the more OOF blur 'wipe' or softening, the better. Just the artist and lighting, everything else is a distraction. You're nearly there!
What I'd change; My crop would be different, a horizontal with cropped left (to his hand), right (to guitar) and enough vertical space to make 4:3 ratio.
A couple things that might be changed, if not improved. The motion blur bothers some, but I like it and use it frequently, especially to show 'movement' important to the scene and subject. My favorite speed for music performance is around 1/100s, slightly faster than your sample.
Also, photos of people while their eyes are closed is generally considered a no-no, but exceptions are made and stage performance (especially while singing) is a big one. Here it conveys emotion well.
Last, B + W for this shot, no question. When there's clean stage gels illuminating a performance the colors are great, very dramatic. But that's a controlled environment. Outdoors, a whole different story. Unless the background is completely cropped out, it is nearly guaranteed to contain signs, cars, lights and lots of conflicting visual junk, none of which help the photo, quite the opposite.
Whether B + W is more realistic for people-shots, I happen to think so, generally. Again, dramatic (colored) stage performance photos would be an exception, but even then I often PP/convert to monotone.
JMO, good start to music photography!
Ron
Last edited by rbefly; 06-17-2014 at 08:32 PM.