Most of my drawings to date have been fairly straightforward to complete, including the finalized, digital images they ultimately become. Not counting any thought given to a design beforehand, usually I just sit down and work on a drawing–really figuring out then and there precisely what it is that I want to do–and, I complete it, sometimes trying out particular techniques along the way. Perhaps then I end up spending, say, three to five hours on a drawing, or maybe more if I have to work on it into a second day. Then I just have to scan it and crop the resulting digital image, after which I go about posting products and writing descriptions and such. (The latter of which, granted, can be a time-consuming and even tedious process.)
When I decided to design a playing card back though, things got substantially more difficult (particularly for a first time around with such a project), and I needed to rely a bit more both on my image editing program, GIMP, but also on my ability to think up alternate methods for achieving my objectives. Whether it was how to ensure symmetry across halves or how to draw such fine and finely detailed lines, or, simply confronting unforeseen issues, creating my Star Back Playing Cards became a really long, but instructive, experience.