Lips Study - Digital Drawing

Hi all!

Here is my new digital drawing.
For today's drawing, I tried delving into something different - a study of the human mouth - the lips in particular. It looks tempting as it seems to be biting a part of the lower lips. The two front teeth can also be seen.

With my favorite style which is scribble, I used it to start building my forms after the outline sketch. That was followed by blurring and then a little shadow behind to give it life.

The sketch was done with AutoDesk sketchbook application and aided with an S-pen. My steps can be seen below:

Thank you.