It's missing some effects, and some "you" features. All I see is a render over a background, two different colors, and neither of them have any flow. The size is kind of small for such a large render, and the text on the second one is definately not appealing. Sorry, not liking it.
try adding some depth to the render and background...maybe reading through some tutorials might help with this. keep trying!
you should add some effects to the cannon and make that the main focus and blur his face a little bit
