1) Make a new document, anysize doesn't matter. Now press "D" on your keyboard to reset the foreground and background colors to black and white. Make sure your background is WHITE.
2) Use the Brush Tool. Select the Permanent Marker Brush:
Make some squiggly lines like above.
3) Apply Filter>Blur>Radial Blur with these settings:
4) Apply Filter>Sketch>Chrome with these settings:
Apply your color now (CNTRL+U):
5) Now duplicate the layer. Apply Multiply to the duplicated layer:
More Tutorials: 
