Shining light for mobile?

Hi,
would someone know how i could create this kind of light for mobile? :

6748-dvilla.png

  • Should i create a halo in Photoshop, on a black background, and use the image as the material of a plane? What about the light beams for mobile?
  • I have heard of additive shaders, but i did not really understand if it is something i should use here?
  • could the particles for the light beams be a solution for mobile? i am quite new with unity, not sure where i should head to here…

Thank you very much

You can use a flare to provide the lens flare effect, but unfortunately what you see in the picture is kind of beyond the capability of mobile devices at present.