halloween background. flock of black bats, spider, pumpkin, and leaves for halloween. black paper bat silhouettes on old wooden da

autumn background backgrounds bat bats black branches celebration composition concept copy dark darkness decoration design event fear festive flock flying forest frame funny ghost gold gothic greeting halloween happy holiday horror idea invitation leaves minimal mockup monster mystery night october old orange paper party pattern people poster pumpkin scary silhouette silhouettes skull space spider spooky symbol thanksgiving top vampire view wing wooden