Well done! The picture seems traced though I could be wrong. You used color and lines well here, the main thing I have to say is it just feels like an image I would have seen a thousand times before of sonic, i'd like to see how you go in challenging yourself and doing something different, even if it were still sonic, trying to reinvent him somehow, or at least pick a unique pose or environment to put him in. overall a good start, keep it up :)