a spooky halloween collage featuring an eerie house, a haunting tree, and a blood-red sunset

halloween collage vector spooky house eerie atmosphere haunted tree red sunset landscape ghostly seasonal horror autumn fear creepy old building decay silhouette fright holiday ominous twilight darkness ruins graveyard pumpkins cobwebs witch bats moon shadows colors vibes fantasy art macabre chill mythical superstition october celebration imagery folklore vintage atmospheric