This is really awesome! Someone entered thisin that "Scared stiff" contest. Thought you should know in case they stole it from you and claimed it as there own. [link] unless this is you on a different name. anyway, really cool art!
Hmm... I honestly don't quite understand achluophobia besides the thought of what might be there. Embrace the night and darkness. In the dark, you, among other things are invisible. With certain adjustments, you can take the advantage.
But that may just be me. Very detailed, and the shadowing is just right. The overall style it's portrayed is important and you pulled it off quite nicely. Well done!