|Greetings from the Critique Club!
First impression: Yowza, I am very glad I don't owe you any money!! I'm afraid to say anything other than 'nice portrait', but then you asked for a critique...so here goes...
Aristic: This kind of pose is a great one, all glowery and mean. I love the neat white shirt and tie, I almost wonder how long it'll be before they're splattered with blood or something! As you have fair hair (love the red beard and blond hair) there seems to be a little bit of washiness going on. Burning to bring out your eyebrows would have made a difference. That or carefully applied makeup just a titch darker than your own hair, so it wouldn't look fake.
Technical: Crop is a little tight to the top of the head, and I am wallowing a little in the negative space flanking you. I feel that a crop in to the outside edge of the coat lapels would have pulled it together a little more and tiny bit more headroom would just give it that little bit extra. Comp and lighting are fine for this shot. Try putting the light (a flood?) lower than your face, say angled up at you approx 45% and get that great monster-lighting effect. That combined with the glower could make all the difference.
Overall: A good finish so no complaints there, but never hurts to mess around and try out some of the suggestions here. You can never shoot too much. Keep up the great work!
Feel free to PM me,