Original
start a flip'n'blend
drag the top layer around to find something interesting
crop to a square
complete the flip'n'blend
flatten, invert, copy
paste it back in before flatten, blend on Divide
layer of Curves, blend on Soft Light
flatten
copy to a new layer, Warp, blend on Darker color Topaz Simplify, Pencil, blend on Luminosity
Go back to the flip'n'blend
SEP2, copy, warp, blend, flatten
use this as a base layer, the Pencil layer on top, blend on Lighten
flatten
copy to a new layer, blend on Multiply
flatten, invert, blend on Subtract
or
to put it another way
fuss around with the detail a lot.