First create a 400x400 pixels picture. Click D to ensure that the foreground color is black and the background color is white. Select Filter>Render>Clouds/Filter/Rendering/Clouds (as shown in the picture)
Select Filter>Blur>Radial Blur/Filter/Rendering/Radial Blur. turn/good/value
Filter>Blur>Gaussian Blur is making a Gaussian blur with a radius of 2 (as shown in the picture)
Filter>Sketch>Bas Relief Filter/Sketch/Base Highlight Details 13 Smooth 10
Filter>Sketch>Chrome filter/sketch/engraved yellow details 5 smooth 2 (pictured)
Adjust the image above, for example: Image>Adjust>Channel Mixer. Image/Adjust/Mix Channel Combined with other color correction tools, the final result is as shown below