Here's the process I've been using for the latest Gundam doodles I've done. They've been getting bigger and bigger. Thus, it's been harder and harder to fit it completely together on the page. So, I've been drawing it separately and the piecing them together in Illustrator. Once you see the final product I think it will prove successful. Or at least it will be a easier process.
Take a gander at all the doodles I've drawn through out the month. I'll be posting sketches on building my characters, What the drawing looks like before and after color, and I might also throw some random nonsense or cool drawings from my other artsy fartsy friends and awesome people I admire.