Creating wave line art style background

Apply a blue to black gradient in radial mode.

From filter menu select "Sketch>>Halftone pattern". Apply settings as shown.

Change the layer mode to "Color Burn" and opacity to 20% from the layer palette.

Select and merge all the layers. Select eraser tool. Right click on the screen and select the brush as shown in the image below.

Apply eraser tool on the edges of the document as shown.

 

 

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