I went with a more simple style for this one:
Basically by not adding any shadows to the drawing, except for one.
I think it makes the whole drawing look a bit calmer, but also a bit less intriguing.
I got some real training drawing people, though, which took up most of the time.
If you want to watch the whole process you can do se here:
And by the way, if you want to see all my digital pieces you can do so in my gallery