hi, I have a question, if you choose to answer it; with a slight background:
I came to your profile because of an illustration of The Doctor. I looked around a bit and then noticed that your liked aren't always straight; but never crooked; so obviously a choice. Because of some of the graphic tools I use (corel, inkscape), this immediately raised the question in my mind: free hand, or vector graphics?
I like your style either way, but I know that some people can do that free hand after years, and some of us gave up because we make no progress