In this tutorial we will learn how to create minimalistic wallpapers. Create a new file that would have
1280x1024 px and
72 dpi. Using the next instrument

, try o represent the background of the picture to be next.
Blending Options-Gradient Overlay
Gradient’s parameters: 
Select the next tool

to draw several rays on the picture.

The parameter of the
first ray:
Blending Options-Inner Glow (this parameter is the same for all rays).