A dark, eerie forest with long, black tree branches reaching out like twisted fingers. The scene is lit by a bright, full moon that casts stark shadows across the ground. The trees are dense, creating a haunting, foreboding atmosphere. In the center of the image, the big size text "HAPPY HALLOWEEN" is written in a large size , bold. The overall design is dramatic and chilling, with a strong contrast between the black trees and the glowing moon. Vector graphic, monochrome with subtle color accents, haunting, Halloween theme --ar 16:9 --q 2 --s 750