Well, the result with the big brushes give it a bold feeling. Be careful, if you get all picky you could rework the life right out if it! I do this all the time, that's why I encourage you to do as little as necessary. A daub of white on the whites of his eye, and use a tooth pick to put one "shine" spot on the black part of his eye.
Paint a bright red hand on a piece of paper, let it dry, cut it out right on the edges and lay it where you'd like to paint it eventually. (this is just a tester hand), then judge if that is an improvement or a detraction. This way you won't paint on it then regret t. If you like, then go back and paint it in place.