gothic castle sits atop mountain embellished gargoyles and eerie pumpkins. bats and owls flutter glowing full moon

gothic castle mountain gargoyles pumpkins halloween full moon bats owls cartoon style spooky night dark atmosphere eerie mythical architecture fantasy landscape silhouette shadows terrain decoration haunted creatures chilling mystical scenes enchanting sinister vibes magical sky decor wildlife flying moonlight horror theme elegant towering ancient enchanted mystery clouds whimsical dramatic silhouettes ai generated