ai-generated scary halloween night background with witches and bats – art

screenshot vehicle poster darkness sea painting watercraft ocean ship night boat text art reflection coast wave underwater scary halloween background ai-generated art witches bats design vector graphics spooky seasonal artwork haunting witch illustrations flying vector eerie visuals event designs witchy decorations dark theme sky creepy digital party backgrounds chilling menacing festive flyer atmosphere captivating imagery unique silhouette bat-themed mysterious scene character halloween bat-infested fun celebration lively bat playful themes spirit webbed atmosphere events enchanting vibes bat-shaped decor magic mystical engaging design