Great drawing! But, to be honest, if you really want to scare me, draw a guy lost in Wal-Mart amongst the cart pushing zombies...that's the stuff true nightmare are made of imo.
This picture could be the book cover for Kafka's "The Trial". It speaks of a man, buried with guilt and shame piled upon him, standing trial for a crime, without being informed what the crime even is, and the loneliness among the world he feels each time he steps out his door. Scary, indeed.
No, you're quite right! That drawing was a sample made for a brochure years ago, and took a ridiculous number of hours to create. Actually, all my drawings take dozens of hours to create.