bloody background scary old wooden wall and concrete floor covered with cobwebs, concept of horror and halloween

abstract artwork backdrop background blood bloodstain bloody cobweb cobwebs conceivably concept concrete covered creepy crime criminal dark design dire dirty dreadful floor flowing forbidding frightening gore grunge grungy halloween horrendous horrific horror identity mark mason messy murder old pattern plank possible print red scary scratch splatter spooky stained texture trace wall wood wooden