Found the tut
but not sure this is using an obsolete version.
I am starting from clouds, the naive approach, layers of desired color mingled with alpha transparency. However, the colors appear to be very gradient. Not desirable as a starting point. How do I flatten that pallete in each of the layers, for starters?
After that, might like to distort, blend, sharpen, or pixelate in some manner, to achieve the digital look. Again, scanning the tut above, seems obsolete to the current version, even with couple of 3P plugins.
Any advice?