Mouth And Lips Study - Digital Drawing

Here is my new digital drawing.
For today's drawing, I tried delving into something different - a study of the human mouth alongside the lips - with my favorite style which is scribbles.

The work depicts a female mouth a bit open in such a way few of her teeth and tongue can be seen. While her lips separate each other and look tempting.

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

Thank you.