Some images have trouble creating a clear focal point, which can make things disorienting if you decide to add text or other elements.
This vector graphic avoids that problem by setting three deep circles against a blurred background. The circles alternate between shades of brown and tan, and the khaki background doesn't distract from the center of the image. Lines move through the foreground, creating stark angles. Lens flair force the viewer's eyes to focus on the busier parts of the image.
This background uses depth intelligently, and its abstract design creates an almost magical effect.