Without an actual photo of yourself to compare it to, I'd have no way of knowing if it resembles you or not. Is this your first self portrait or portrait in general? If it is, its pretty decent.
I suggest adding more depth and lines to your face and chin, though, to give it more form and structure. This seems more like a doodle or sketch approach than a portrait, but there's always room for improvement and you're off to a good start.