This Demon causes nightmare.
It troubles the living at night and disturb their peaceful sleep.
You can see it gradually moving away from the dark and entering the light mode.
I added red to its eyes to make look fierce and dangerous. You can also see its long tree fingers on its mouth as though to silent its scream.
Time to cause havoc
This piece was done with AutoDesk sketchbook application and aided with an S-pen. My steps can be seen below:
Thank you.