This is not exactly a tutorial, is more a “‘how it’s made” (or “making of”), the steps below are an illustration of my Inkscape workflow used to create the clipart set, I won’t pretend this is the best process, or even a good or simple process, is exactly that: an illustration of my own workflow. There are many alternate paths one can take, like draw the outline using the calligraphic tool, simplify the nodes automatically, fill with the paint bucket or color with plain colors instead of gradients.