My first Background [not sig]

This is my first attempt at a background so please tell me how I can improve.

 

It's not terrible but a few things I dislike;
>> The size of render and the way you edited it to make it look blue
>> The text used and the gradient used
>> Colours used

 

Yeah I dont really like the background colors, and mabey add a bit of variety.
However it is pretty good, keep trying

 

I dont like how the render is in half.
but overall its good.

 

Thanks guys, I'm still trying to learn how to use PS effectively.