A little process post. I usually set a rule for myself. When I go with a more complex background like this one, I like to offset it by placing overly simplistic objects as the focus. If I choose to create a more unique complex/organic object, usually the backdrop will be plain and simple. I took a hi-res photo of a local street and used it as an image-based texture, loading it within the color and displacement channel. Pictures like these work specifically well because the light and dark values of the photo reflect in how it is displaced as well. Thus, any light I choose to throw at it will react well with the height values and create accurate shadowing.