This guide was made for entry: Down here In Contest: blue
step 1 of 7
Open new document, press D to switch to black and white colors. Go to Filter/Render/Clouds
step 2 of 7
Next go to Filter/Pixelate/Mezzotint abd set it to Short Strokes.
step 3 of 7
Next go to Filter/Blur/Radial Blur and set the Amount 100, Blur Method Zoom, Quality Best. Do this twice.
step 4 of 7
Duplicate layer. Select one of them and go to Filter/Distort/Twirl. Set the angle on 100 degrees.
step 5 of 7
Select other layer, do the same filter only this time the twirl angle should be -100 degrees. Set the layers blending mode to darken. (the one that's above)
step 6 of 7
Now add the adjustments to both layers, I used hue/saturation with colorize checked. Try to get some nice blues.