Let’s take a look at the finished effect first
The size of the new file can also be customized
Perform a gradient operation on the background layer and set the color to dark gray on both sides and light gray in the middle.
Select a radial gradient from the upper left corner to the lower right corner
Create a new layer
Hold down the Shift key and use the circular selection tool to draw a perfect circle
Hold down the Shift key and use the circular selection tool to draw a perfect circle
Gradient from light green to dark green to light green
Work within the selection
Click the Layer Blending Options under the Layers panel and select Drop Shadow.
The settings are as follows
Check Inner Glow and change the layer blending mode to: Multiply. Change the color to black and the size to 30.
Create a new layer
Press the thumbnail of the previous layer 1 to bring up the selection