Young guy got lot of character Jamie. Like the dark tones and colorful background. Personally would have gone for a bulls eye composition. I like your suject placement too.
With him looking directly at you, you can place him in the center of the image. If leaving more room one side or the other, I would have opted for the right side here as that is the side the butt is turned to.
Great alert look and as SId mentioned, nice BG colors.
Jamie, I agree with Robert's suggestion in regards the placement the picture needs a little bit more room on the right. Otherwise it is a very excellent picture.
Love this photo. The contrast and color is excellence. Im gonna disagree with some others and say I like the composition as well. Very artistic rendering.