EXAMPLE EXECUTION 2019:
(featuring "Wizard" by Oni, winning entry from Revision 2019)
STEP 1:
A chaotic picture made with a program called "Alchemy". It has a
function to produce random shapes of awesomeness out of originally
straightly-drawn lines.
STEP 2:
Most important / mandatory part: Highlight the shapes you saw and
decided to use for your entry by painting over the chaos picture.
STEP 3:
From this point on, you may also resize, rotate, replace and generally add stuff as you see fit to produce a good composition.
STEP 4:
Final result, whoooop!