This is a simple abstract background made of spheres and a beveled cube. I used 2 area lights to light the scene. One of them was blue (cold color) and the other one was yellow (warm color
BLEND (Blender, filesize: 1.73 MB), OBJ (OBJ, filesize: 799 Bytes), FBX (Autodesk FBX, filesize: 308 KB), DAE (Collada, filesize: 1.12 MB)