I like the fact it's called mom. I like the different kind of textures you can make out throughout the drawing. Would be really interesting to see what you do if you finish it.
In a way, it's really sweet. Just because it might portray the view of a child to their mother, who they might be afraid of [because it's scary-like]. Or the way someone views their mother who might have passed away, as in how haunting it looks, and at the same time quite helpless.
[Just some random thoughts that came into my head when I looked at it again]