Gradient’s parameters.

Choose now next tool to draw a circle painted in white again, like in the next step.

And one more with the previous instrument.

Get the same instrument again to picture another element with the sizes from next picture.

Fill 0% on the layers and place them correctly.
Blending Options-Gradient Overlay

Gradient’s parameters.

One more figure must be represented by the same instrument. Don’t forget about the parameters.

Fill 0 % on the layers and place correctly the layers also.
Blending Options-Gradient Overlay

Gradient’s parameters.