The background is nice although i don't agree with the choice of color through out your composition..
The render itself.. sucks brings down the composition even more.
I'd give it a 7/10
5/10
The upper part of the robot is cutting off..
The bot itself is to bright that it takes away from everything
I don't like how you brought together the colors..
The typography..
The background..
Just work on that stuff & you'll get better <3