Who do you go to when you need that poison to take care of your enemies? This medieval Apothecary traded in his morals for a second-hand cauldron, and will be perfectly willing to aid and abet, provided the customer pays up front.
Development process: Brainstorming and Idea gathering, shape exploration, development and refining, final sketch. Not shown: reference gathering, which usually happens at the beginning, for ideas, and at the end, for precision.