As many already said, yes, it's too big. But a simple rescale at this point is not recommended: the size reduction will cause some detail loss. In particular, you will lose the fine lines of the web effect.
Overall, I think there is too much negative (background) space; the composition is unbalanced. It's also very close to being symetrical; one half is the character, the other the text.
Overall, I think your technique was well executed, it just needs a little more balancing (which will probably be fixed when you redo the image in a smaller size). Certainly a superb start for a beginner. Can't wait to see how you improve!
-DarkenProject