You have an interesting face but you have taken a shot which leaves it quite blank. A slight smile, an envious look or something to give the shot character would have helped. Don't think the hat helps here - maybe would have gone with a colorful bandana or a cap on in the reverse, something with a bit more punch to it that adds to the portrait. Lighting is ok but skin colors are way out. The pose could be improved by being on a bit more of an angle (turn your shoulders a bit more) and also leaving a bit more room to your right. Phew, think I need a cuppa now. lol Hope that helps :)
Your focus seems to be just a touch off. Seems to be on your chin. I am drawn to the eyes though and they just seem to be too soft to give the real impact.
TC