It's good for a beginner, And you made the beginner mistakes. When you are making a tag you should try to create "flow" within the image. meaning everything looks like its going in the same direction. Also creating a focal point is a really important part when making tags. Read up some tuts at deviant art. Also if you would like i can give you tips and etc just add my msn [email protected]
blending the render is also a major point in making a tag.