For my initial experiments I made sketches of a few art styles that I have chosen. The styles are: paper dolls, doodles and manga.
The following sketches are drawn in manga style -- a style that I'm most comfortable with and have been developing for a while.
These are examples of 'stylized' manga style -- I try to vary the current style I have a bit and went for an almost cartoonish look.
The following images are examples of doodles
These are the results of combining manga style with doodles.
I haven't tried my hand at paper dolls yet, but I will try.