Without mencioning the text, the background is too blurry, and the colours are too repetitive. Some blur might add depth, but too much blur just ruins the piece. Plus, the light source is a bit strange, can't understand if it's coming from the top or from the bottom. Finally, the render seems a bit blurred and erased (on the edges). What i advise is that you read some tutorials on making C4D backgrounds (assuming you're using C4D images) and blending tutorials. Other than that, i can see you've put some work onto it, so just follow these tips and you'll do fine.
