I guess Airbrush is most suitable to me due to its attributes of being opaque and smooth, it is something like a mix between oil and watercolor and thus I will treat it as such.
I've written a tutorial of my approach (unfortunately in German :0).
OK! In my last post I have developed the "letters" that are used to build up a drawing.
Now I have to assimilate any subjects I see so that I get to know the "words and sentences" of the world to broaden my ideas and to be able to instantaneously interepret them into a drawing.