halloween cemetery at night with glowing jack-o'-lanterns and spooky atmosphere. graves and pumpkins in a ghostly

halloween cemetery night jackolantern spooky atmosphere graves pumpkins haunted graveyard horror ghostly darkness tombstones autumn fall eerie scare lanterns celebration holiday event theme october skeleton bat forest moon fog smoke glowing fantasy illustration art digital design scary mysterious chilling decor festival tradition fright sinister calavera ai generated