How to move backdrop image in 3D render.

[WhistlerBuilder]

Is there a way to move the background image further away from the camera in the 3D renders?

 

The image I have is showing the trees practically at the end of the deck and I would like them to be further away. I have tried up scaling and down scaling the image with no results. 

 

Any suggestions?

[Michael_Gia]

Twinmotion or what most guys do is to put up a giant screen by using a p-solid and stretching your image onto that.  
That way you can scale the image and move it around. 
Make copies of it and put the solid on different layers so you can adjust per render view.