22) Chrome material

Diffuse: pure black

Reflect: 219 black

Refl glossiness: 0.7

Check Fresnel reflections, set FresnelIOR to 10

IOR: 2.97

23) Use simple plane modeling to create background. . .

24) For background plane create new material, put gradient ramp in diffuse slot and play with colors. This is my example . . .

25) Place two Vray lights like shown below with both Mult. set to 4.5.

26)Create plane for reflections above light balls.

27)Right click on it and select properties.

Uncheck Visible to Camera, Receive Shadows and Cast Shadows.

28) Make VRayLightMtl, check double sided and assign it to reflection plane.

29) In render use this settings

30) You can also use HDR for better reflections.

Create new VRayHDR in Material editor, Browse any HDR file and play with multiplier.

31) Now open render and go to Vray : Enviroment.

Check  skylight and set it t 0.1.

Check reflection and copy VRayHDR to reflection slot, after that pick instance.

32) Click render….