The last instrument will be helpful in representing one more ball and it must have the same sizes from next image.

Fill 0% on the layers.
Blending Options-Gradient Overlay
Gradient’s parameters. 
Copy the last layer 7 times and apply again
Free Transform option to process the sizes if it is necessary.

The same instrument

will be helpful in picturing another fir –tree ball with the indicated parameters next step.

Fill 0% on the layers.
Blending Options-Gradient Overlay
Gradient’s parameters. 
Get to another instrument

to choose the recommended cliché from the next table.

Apply the parameters form below:
Blending Options-Outer Glow
Gradient’s parameters. 
Finally we’ll get the next:

The final result!