Let’s take a look at the final effect:
Create a new file in Photoshop with a black background and a blue to blue-black radial gradient in the lower left corner.
Create a new layer, set the foreground color to white, select a flat square brush, and draw a few lines as shown below. Then select "Filter - Blur - Radial Blur".
Special Recommendation: Photoshop Brush Tool Preset Tips
Select the menu "Color - Saturation" and adjust the hue to blue. Move to the blue gradient circle in the lower left corner.
Create a new layer and use the pen path tool to draw the curve as shown below.
Outline the path with white and set the Outer Glow.
Duplicate the main line layer and make a motion blur at a 45-degree angle.
