It's actually easy if you "cheat". I was doing some illustrator traces of ponies from the show and then changing their color, adding the right hair and adjusting poses slightly when I realized there's no reason I have to trace the same pony twice. So now I have a huge file with about 35 different poses and any time I do another, I add it to my "Master file" to save time in the future if I reuse that pose or a similar one.Granted, there are some poses I made up, but I store those too