aged antique backdrop background black bone bones creepy cross crossbone crossbones danger dangerous evil flag free gray grey grime grimy grunge grunged grungy image jolly old omen ominous page paper photo photograph picture piracy pirate resource retro roger scary sheet skeleton skull somadjinn stock texture textured vintage warn warning white adventure ancient buccaneer captain dead death death at sea fear fighting halloween hat horror killing knife murder pirate ship pirates of the caribbean plunder raise the colors robbery rodger sailing sailor sea seafaring ship skeletal swashbuckler sword symbol terror voyage walk the plank war watery grave zombie zombie pirate