silhouettes of trees in the dark night forest. fantastic mysterious landscape. foggy forest

atmosphere autumn backdrop background black blue branch brume concept creepy dark darkness eerie enchanted evening fantastic fantasy fear fog foggy forest ghostly gloomy halloween haze horror illustration landscape light magic mist misty mysterious mystery mystic mystical nature night nightmare outdoor paranormal scary scenery silhouette silhouettes spooky surreal tree trees twilight wallpaper wood woodland woods vector