A thing I often find when people use bases, is that they don't put a background. They use plain white. I try to use backgrounds that would make it look "real".
Most of my base pictures are Soul Eater, so I figured: Take a sceenshot, and edit the character out of it.
Here's a background, and I do not own it, I merely own the edited version.
As you can see, some of them have the Funimation watermark in the corner, and I apologize for that.
Feel free to use. Here's an example