Here is how I made Calvin the Cactus come to life!
First, I sketched out what my cactus would look like
I then started with illustrator, making basic shapes and resorting to the pen tool when necessary.
Next, came the mugshot-style versions of Calvin! With guidelines, I made sure that he was aligned properly
Finally, I made a few other versions! A sick and in-love Calvin! All ready for potential manufacturing (maybe)!
And here Calvin is with pantone colors!