Gradient’s parameters:





Continue by making one more copy of the last made circle and select after that the Free Transform option to enlarge the copy a little. Change its parameters with different ones, those indicated below:



The layer’s parameters:
Fill 0% on the layers.
Blending Options>Gradient Overlay



Gradient’s parameters:





Take the Ellipse Tool (U) to represent the next background’s layer for the picture to be. Firstly we need to draw the outside edges and then press on the Alt button to delete figure’s inside part.