eerie halloween background with bats and full moon – ai-generated for events

night house screenshot home estate evening lighting light mansion darkness building tree property cottage resort window town eerie halloween background ai-generated design bats full moon vector spooky vector art event graphics haunting poster chilling graphic artwork creepy imagery silhouette invitation haunted decorations ambiance flying atmosphere design halloween sky celebration scene night silhouette halloween-themed scenery ghostly graphics events dark party invitation elements scene landscape decorations invitations