Blending Options-Stroke
May a copy of the new made layer and make use again of the Free Transform option to make the copy smaller and place it the same way it is indicated below:
Using the same instrument, try to draw one more circle:
Blending Options-Drop Shadow
Blending Options-Gradient Overlay
Gradient's parameters:
Blending Options-Stroke
Represent the same way our last circle:
Blending Options-Drop Shadow
Blending Options-Gradient Overlay
Gradient's parameters:
Blending Options-Stroke
Click to enlarge
The illustration is finished!
More Tutorials: 
